soundness Synonyms

firmness healthiness wiseness wisdom strength solidity sense substantialness tenability sapience sanity toughness trustiness truth validity saneness verdure substantiality sturdiness sensibleness steadiness solidness solvency stabiliment stability stableness stanchness security secureness vigor well-being wholeness meritoriousness intactness wholesomeness dependability haleness justifiability persuasiveness predictability roadworthiness salubriousness physical fitness mental health mental balance airworthiness heartiness normality satisfactoriness auspiciousness