| Clue | Length | Answer |
|---|---|---|
| strenuousness | 5 letters | rigor |
| ||
| strenuousness | 5 letters | vigor |
| ||
| strenuousness | 8 letters | vitality |
| ||
| strenuousness | 8 letters | strength |
| ||
| strenuousness | 9 letters | toughness |
| strenuousness | 9 letters | vehemence |
| ||
| strenuousness | 14 letters | relentlessness |
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- Will
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- assiduity
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- bulldog tenacity
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- Commitment
- Concentration
- Constancy
- Cruelty
- decidedness
- Decision
- Decisiveness
- dedication
- definiteness
- determinateness
- Determination
- determinedness
- Devotion
- Diligence
- dogged perseverance
- *Doggedness
- dourness
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- Endurance
- energeticalness
- Energy
- engrossment
- Fate
- fatefulness
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- Firmness
- flintiness
- Force majeure
- fundamentalism
- grimness
- hard bittenness
- hard nosedness
- hardness
- Harshness
- heartlessness
- Immovability
- immutability
- implacability
- impliability
- inclemency
- indefatigability
- indefeasibility
- industriousness
- Industry
- inelasticity
- ineluctability
- inescapableness
- inevasibleness
- Inevitability
- inevitable accident
- inevitableness
- Inexorability
- inexorableness
- Inflexibility
- Insistence
- insistency
- intransigeance
- intransigence
- intransigency
- intransigentism
- irreconcilability
- irrevocability
- Laboriousness
- Loyalty
- mercilessness
- Necessity
- obduracy
- obdurateness
- Obstinacy
- orthodoxy
- Patience
- patience of Job
- permanence
- Perseverance
- persistence
- persistency
- pertinaciousness
- pertinacity
- pitilessness
- plodding
- Plugging
- precisianism
- predetermination
- Preoccupation
- purism
- puritanism
- Purpose
- purposefulness
- remorselessness
- Resoluteness
- Resolution
- Resolve
- resolvedness
- Rigidity
- rigidness
- Rigor
- rigorism
- rigorousness
- ruthlessness
- sedulity
- sedulousness
- self-will
- Seriousness
- short shrift
- sincerity
- Single-mindedness
- singleness of purpose
- slogging
- Stability
- Stamina
- Staying power
- Steadfastness
- Steadiness
- steeliness
- sternness
- Stick-to-itiveness
- stiff temper
- Stiffness
- strenuousness
- Stubbornness
- Sureness
- tenaciousness
- Tenacity
- tender mercies
- tirelessness
- total commitment
- Toughness
- unalterability
- unavoidable casualty
- Unavoidableness
- unbendingness
- unchangeability
- uncompassionateness
- uncompromisingness
- uncontrollability
- undeflectability
- unfeelingness
- unforgivingness
- ungivingness
- unmercifulness
- unpreventability
- unrelentingness
- unremittingness
- unremorsefulness
- unsparingness
- unswerving attention
- unsympatheticness
- unyieldingness
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- vis major
- zealousness
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- Hardship
- Boot camp experience
- Austerity
- Asperity
- Inexorability
- Severity
- Stiffness
- Lack of laxness
- Harshness
- Ordeal's quality
- Discipline
- Strictness
- Exactitude
- Extreme hardship
- Inflexibility
- Strict precision
- Harshness of rules
- highest scientific standards
- Martinet's imposition
- Stringency
- thoroughness
- severity, as of rules
- Difficulty
- Martinet's quality
- No-Nonsense Nature
- .......... mortis
- Demanding quality
- Mathematical precision
- intellectual seriousness
- extreme precision
- Severity (rhymes with "vigor")
- quality of a challenging class
- intellectual thoroughness
- exacting standard
- strict quality
- apt rhyme for “vigor”
- characteristic of the nbc page program
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- Excessive strictness
- Toughness
- Albigensianism
- Catharism
- Franciscanism
- Sabbatarianism
- Trappism
- Waldensianism
- ...... yoga
- absolute zero
- absoluteness
- Abstinence
- abstruseness
- Accuracy
- Acerbity
- Acidity
- acridity
- acrimony
- Acuteness
- adverse circumstances
- Adversity
- Affliction
- Aggravation
- algidity
- anchoritic monasticism
- anchoritism
- animality
- Annoyance
- arduousness
- asceticism
- astringency
- atrocity
- Attention to detail
- attention to fact
- barbarity
- Bite
- Bitterness
- bleakness
- Blight
- bloodlust
- bothersomeness
- Briskness
- Brutality
- Bummer
- burdensomeness
- Care
- care for truth
- causticity
- Chill
- Chilliness
- circumstantiality
- Cold
- Coldness
- Complexity
- complication
- conscientiousness
- "Cool!"
- Coolness
- coolth
- Correctness
- crispness
- criticality
- criticalness
- ...... cross
- cryogenics
- cryology
- Curse
- decrease in temperature
- Delicacy
- destructiveness
- Detail
- Difficulties
- difficultness
- Downer
- Edge
- eremitism
- exactingness
- Exactness
- exquisiteness
- Extremity
- Faithfulness
- fasting
- Faultlessness
- ferociousness
- Fidelity
- Fierceness
- Fineness
- finicality
- finicalness
- finickiness
- finickingness
- Firmness
- flagellation
- .. flawlessness
- Force
- Freezing point
- Freshness
- Frigidity
- Frostiness
- fundamentalism
- Furiousness
- fussiness
- gelidity
- "...... grip!"
- hairiness
- Hard knocks
- hard life
- hard lot
- hardcase
- hardness
- iciness
- Impetuosity
- impliability
- inclemency
- inhospitableness
- Inhumanity
- intense cold
- Intensity
- intricacy
- Irritation
- Keenness
- Laboriousness
- literalism
- literality
- Literalness
- low temperature
- maceration
- Malignity
- mendicantism
- mercilessness
- Meticulousness
- Mindlessness
- minuteness
- monachism
- monasticism
- mordacity
- mordancy
- Mortification
- murderousness
- niceness
- Nicety
- Nip
- nippiness
- obduracy
- obdurateness
- Obstinacy
- onerousness
- oppressiveness
- orthodoxy
- Particularity
- particularness
- Perfection
- pitilessness
- Plight
- Poignancy
- Point
- Preciseness
- precisianism
- Precision
- Predicament
- Pressure
- Punctilio
- punctiliousness
- punctuality
- purism
- puritanism
- rawness
- Refinement
- relentlessness
- renitence
- renitency
- Right
- rightness
- Rigidity
- rigidness
- rigorism
- rigorousness
- roughness
- ruggedness
- Savagery
- scrupulosity
- scrupulousness
- sea of troubles
- Self-denial
- self mortification
- sharp air
- Sharpness
- starchiness
- sternness
- Sting
- strenuousness
- Stress
- stress of life
- Stridency
- Stubbornness
- Subtlety
- Tartness
- Tautness
- ...... teeth
- Tenseness
- Tension
- tensity
- terrorism
- textualism
- "The .... Letter"
- Tightness
- toilsomeness
- trenchancy
- Trial
- Tribulation
- Trouble
- Troubles
- troublesomeness
- unbendingness
- uncompromisingness
- ungentleness
- unrelentingness
- unyieldingness
- vale of tears
- vandalism
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- Venom
- viciousness
- vicissitude
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- Virulence
- visitation
- voluntary poverty
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- opposite of leniency
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- Head count of an army
- Potency
- Physical energy
- Good quality that comes from being 8
- The opposite of weakness
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- Brawn or toughness
- Force
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- Power, brawn
- Physical power
- Physical or mental capacity
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- Good attribute
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- Inner might and power
- inner intensity
- Intensity
- Muscles
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- Effort is needed to make a trial of it
- Bodybuilder's goal
- the longest one-syllable word might
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- Power, vigour
- Something found in numbers, it's said
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- Physical might
- What flexed muscles suggest
- Vigour
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- Nerve
- Fibre
- calibre
- Virtue
- Faculty
- Gauge
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- Firmness
- Resolution
- Sinews
- thews