67 entries under plain topic. ×

46
naive(adjective, open, direct, free, simple)
29
artless(adjective, open, direct, free, simple)
26
guileless(adjective, open, direct, free, simple)
24
candid(adjective, good, clear, show, open)
24
frank(noun, adjective, good, clear, show)
24
honest(adjective, good, clear, show, open)
24
open(adjective, good, clear, show, free)
21
sincere(adjective, good, open, direct, free)
21
straightforward(adjective, good, clear, show, open)
16
direct(adjective, good, clear, show, open)
15
innocent(adjective, open, free, simple, easy)
15
unaffected(adjective, open, simple, easy, clean)
15
simple(adjective, clean, honest, pure)
13
unsophisticated(adjective, simple, clean, honest)
13
forthright(adjective, good, clear, show, open)
13
natural(adjective, open, direct, free, simple)
11
genuine(adjective, good, open, simple, easy)
11
green(adjective, simple, clean, honest)
11
straight(adjective, clear, show, open, free)
11
outspoken(adjective, open, direct, free, easy)
11 years ago|18k views|share |citing 
APASmart Define. (2015). ingenuous thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/ingenuous/thesaurus/synonyms
ChicagoSmart Define. 2015. "ingenuous thesaurus" https://smartdefine.org/ingenuous/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, ingenuous thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/ingenuous/thesaurus/synonyms>.
MLASmart Define. "ingenuous thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/ingenuous/thesaurus/synonyms>