308 entries under straightforward topic. ×

2
undoubted(clear, right, precise, real)
2
unidealistic(adjective, tough, rational, sober)
2
unimpassioned(adjective, calm, tough, dark, restrained)
2
uninspiring(adjective, dull, weak, simple, flat)
2
unquestioned(adjective, precise, unambiguous, understandable)
2
unschooled(adjective, open, simple, easy, honest)
2
up-front(adjective, open, simple, easy, friendly)
2
up front(expression, honest, sincere, genuine)
2
upright(open, free, honest, sincere)
1
ABCs(simple, basic, fundamental, uncomplicated)
1
abecedarian(simple, basic, fundamental, uncomplicated)
1
apathetic(adjective, dull, simple, tough, rational)
1
assured(clear, simple, precise, obvious)
1
beginning(simple, basic, fundamental, uncomplicated)
1
call a spade a spade(expression, open, free, honest)
1
cinch(adjective, clear, light, smooth, simple)
1
clear cut(expression, adjective, clear, definite)
1
cold-blooded(adjective, tough, rational, sober)
1
composed(adjective, calm, light, simple, easy)
1
conclusive(clear, simple, precise, obvious)
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APASmart Define. (2016). plain thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/plain/thesaurus/synonyms
ChicagoSmart Define. 2016. "plain thesaurus" https://smartdefine.org/plain/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, plain thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/plain/thesaurus/synonyms>.
MLASmart Define. "plain thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/plain/thesaurus/synonyms>