2
healthy mind(expression, routine, wit, prudence, stability)
2
heartiness(noun, health, power, strength, energy)
2
helpfulness
2
honesty(noun, honor, right, confidence, goodness)
2
horse sense(noun, expression, health, knowledge, reason)
2
incorruptibility(noun, health, honor, right, confidence)
2
intactness(noun, health, healthiness, wholeness)
2
integrality(noun, health, constant, healthiness, wholeness)
2
intelligence(noun, understanding, knowledge, mind, reason)
2
invincibility
2
levelheadedness(noun, health, knowledge, reason, sense)
2
logicality(fairness, rationality, sensibleness)
2
lucid interval(expression, idiom, sanity)
2
lustiness(noun, health, force, body, power)
2
marbles(noun, understanding, power, spirit, mind)
2
mental balance(expression, routine, regularity)
2
nerve(noun, health, force, body, power)
2
normalcy(routine, regularity)
2
physical fitness(noun, wholeness, wellness, wholesomeness, verdure)
2
practicality(knowledge, mind, reason, sense, intelligence)
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APASmart Define. (2015). soundness thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/soundness/thesaurus/synonyms
ChicagoSmart Define. 2015. "soundness thesaurus" https://smartdefine.org/soundness/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, soundness thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/soundness/thesaurus/synonyms>.
MLASmart Define. "soundness thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/soundness/thesaurus/synonyms>