83 entries under plain topic. ×

9
simple(adjective, direct, honest, natural)
9
truthful(adjective, good, open, direct, sound)
7
uninhibited(adjective, open, free, honest)
6
bold(adjective, open, free, honest)
6
transparent(adjective, open, free, honest)
6
undisguised(adjective, good, open, free, easy)
5
matter-of-fact(adjective, open, direct, free, easy)
5
real(adjective, good, open, direct, free)
5
unaffected(adjective, calm, open, simple, honest)
4
bald(adjective, open, simple, honest)
4
heart-to-heart(open, free, honest, natural)
4
unpretentious(adjective, calm, open, simple, honest)
3
easy(adjective, open, free, honest)
3
natural(adjective, open, free, honest)
3
uncontrived(adjective, open, simple, easy)
3
upright(adjective, good, open, direct, sound)
2
from the hip(adjective, open, free, honest)
2
jejune(simple, fresh, innocent, sincere)
2
outright(open, free, honest, fair)
2
scrupulous(adjective, good, open, direct, free)
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APASmart Define. (2015). forthright thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/forthright/thesaurus/synonyms
ChicagoSmart Define. 2015. "forthright thesaurus" https://smartdefine.org/forthright/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, forthright thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/forthright/thesaurus/synonyms>.
MLASmart Define. "forthright thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/forthright/thesaurus/synonyms>