185 entries under rational topic. ×

18
intelligent(adjective, clear, reasonable, sharp, smart)
17
logical(adjective, good, clear, reasonable, sensible)
16
whole(verb, adjective, health, good, bad)
15
right(adjective, health, good, complete, correct)
15
secure(adjective, calm, good, clear, strong)
15
trustworthy(adjective, good, clear, strong, simple)
13
fair(adjective, good, clear, reasonable, honest)
13
normal(adjective, good, strong, tough, correct)
13
wholesome(adjective, health, good, clear, strong)
12
just(adjective, good, correct, reasonable, reason)
12
practical(adjective, calm, hard, direct, reasonable)
12
sober(adjective, calm, good, dull, hard)
12
well-founded(adjective, calm, good, strong, secure)
11
commonsensical(adjective, good, clear, reasonable, reason)
11
legal(adjective, reasonable, accepted, established)
11
plausible(adjective, clear, reasonable, honest, sensible)
11
thoughtful(adjective, good, reasonable, sharp, smart)
11
true(adjective, good, clear, strong, correct)
10
clear(adjective, reasonable, firm, sensible, fair)
10
credible(adjective, reasonable, sensible, solid)
10 years ago|68k views|share |citing 
APASmart Define. (2016). sound thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/sound/thesaurus/synonyms
ChicagoSmart Define. 2016. "sound thesaurus" https://smartdefine.org/sound/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, sound thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/sound/thesaurus/synonyms>.
MLASmart Define. "sound thesaurus" 24 March 2016. Web. 26 September 2026. <https://smartdefine.org/sound/thesaurus/synonyms>