6
rigid(adjective, complete, severe, harsh, pure)
6
sedulous(adjective, careful, regular, serious, competent)
6
set(adjective, resolute)
6
stark(complete, total, pure, absolute, abundant)
6
steadfast(adjective, complete, total, definite, resolute)
6
steady(adjective, complete, total, definite, resolute)
6
thoughtful(adjective, reasonable, sensible, deliberate, alert)
6
unrelieved(adjective, big, limited, utter)
5
accomplished(adjective, complete, regular, serious, practical)
5
accurate(adjective, complete, sensible, exact, certain)
5
clean(adjective, complete, neat, tidy, organized)
5
clear(adjective, complete, flat, total, certain)
5
confidential(adjective, intimate, private, personal)
5
dedicated(adjective, resolute)
5
discreet(sensible, thoughtful, sober, wise, shrewd)
5
done(adjective, complete, completion)
5
earnest(adjective, careful, regular, serious, resolute)
5
encyclopaedic(adjective, comprehensive, overall, global, cosmic)
5
essential(adjective, intimate, secret, private, personal)
5
firm(adjective, clear, complete, total, solid)
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APASmart Define. (2015). thorough thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/thorough/thesaurus/synonyms
ChicagoSmart Define. 2015. "thorough thesaurus" https://smartdefine.org/thorough/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, thorough thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/thorough/thesaurus/synonyms>.
MLASmart Define. "thorough thesaurus" 6 July 2015. Web. 22 September 2026. <https://smartdefine.org/thorough/thesaurus/synonyms>