39 entries under serious topic. ×

33
open(adjective, clear, direct, free, easy)
32
candid(adjective, open, direct, free, easy)
31
frank(noun, adjective, clear, open, direct)
24
straightforward(adjective, clear, open, direct, free)
23
forthright(adjective, open, direct, free, easy)
18
honest(adjective, open, direct, free, easy)
17
plain(adjective, clear, open, direct, free)
12
artless(adjective, open, direct, free, easy)
9
guileless(adjective, open, direct, free, easy)
4
square(adjective, open, honest, plain, true)
3
unpretentious(adjective, open, honest, true, straightforward)
2
devout(open, honest, true, straightforward, straight)
2
true(adjective, open, correct, honest, natural)
2
trustworthy(open, honest, true, straightforward, straight)
2
unaffected(open, honest, plain, true, straightforward)
2
unfeigned(open, honest, true, straightforward, straight)
2
up-front(open, direct, honest, true, straightforward)
1
actual(open, honest, true, straightforward, straight)
1
dead-level(open, honest, true, straightforward, straight)
1
dear(open, honest, true, straightforward, straight)
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APASmart Define. (2015). outspoken thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/outspoken/thesaurus/synonyms
ChicagoSmart Define. 2015. "outspoken thesaurus" https://smartdefine.org/outspoken/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, outspoken thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/outspoken/thesaurus/synonyms>.
MLASmart Define. "outspoken thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/outspoken/thesaurus/synonyms>