16
outright(adjective, clear, complete, simple, flat)
16
particular(adjective, close, top, exact, certain)
15
entire(adjective, complete, simple, total, solid)
15
precise(adjective, complete, fancy, exact, certain)
14
all-out(adjective, complete, total, big, full)
14
diligent(adjective, complete, total, careful, precise)
14
exact(adjective, complete, fancy, certain, complex)
14
in-depth(adjective, complete, total, full, secret)
14
perfectionist(adjective, careful, scrupulous, detailed)
14
punctilious(adjective, precise, meticulous)
14
pure(adjective, complete, simple, total, plain)
14
unalloyed(adjective, complete, total, pure, definite)
13
extensive(adjective, complete, fancy, top, total)
13
profound(adjective, complete, sensible, intense, full)
13
sheer(adjective, complete, simple, severe, total)
12
minute(noun, adjective, close, complete, fancy)
12
rigorous(adjective, thoughtful, sober, cautious, prudent)
11
attentive(adjective, careful, thoughtful, sober, prudent)
11
fastidious(adjective, precise, meticulous, vigilant)
11
through-and-through(adjective, complete, total, obvious)
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APASmart Define. (2015). thorough thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/thorough/thesaurus/synonyms
ChicagoSmart Define. 2015. "thorough thesaurus" https://smartdefine.org/thorough/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, thorough thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/thorough/thesaurus/synonyms>.
MLASmart Define. "thorough thesaurus" 6 July 2015. Web. 21 September 2026. <https://smartdefine.org/thorough/thesaurus/synonyms>