23
suitability(noun, order, benefit, advantage, behavior)
20
fitness(noun, order, benefit, agreement, advantage)
17
aptitude(noun, art, feeling, power, turn)
16
appropriateness(noun, behavior, manner, description, harmony)
15
appositeness(noun, order, benefit, advantage, matter)
14
felicity(noun, skill, behavior, manner, description)
14
propriety(noun, order, benefit, agreement, advantage)
13
suitableness(noun, behavior, manner, pattern, morality)
12
propensity(noun, feeling, power, turn, ability)
11
relevance(noun, matter, description, correctness, characteristics)
10
applicability(noun, agreement, substance, matter, description)
10
capacity(noun, art, feeling, power, turn)
10
rightness(noun, order, benefit, advantage, behavior)
10
tendency(noun, feeling, ability, behavior, affection)
9
admissibility(noun, agreement, readiness, suitability, consistency)
9
congruity(noun, description, harmony, morality, fitness)
9
fittingness(noun, behavior, manner, pattern, suitability)
9
inclination(noun, feeling, power, strength, ability)
9
proclivity(noun, feeling, power, turn, ability)
9
qualification(noun, power, strength, skill, facility)
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APASmart Define. (2016). aptness thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/aptness/thesaurus/synonyms
ChicagoSmart Define. 2016. "aptness thesaurus" https://smartdefine.org/aptness/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, aptness thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/aptness/thesaurus/synonyms>.
MLASmart Define. "aptness thesaurus" 25 February 2016. Web. 20 September 2026. <https://smartdefine.org/aptness/thesaurus/synonyms>