2
levelheaded(adjective, calm, relaxed, tranquil, easygoing)
2
overweening(rude, certain, familiar, sure, arrogant)
2
peaceful
2
placid(adjective, calm, relaxed, tranquil, easygoing)
2
pompous(rude, superior, arrogant, presuming, self-satisfied)
2
reassured(adjective, strong, easy, solid, certain)
2
self-important
2
serene(adjective, calm, happy, relaxed, tranquil)
2
sure of oneself(expression, adjective, idiom, calm, relaxed)
2
tranquil(adjective, calm, relaxed, easygoing, serene)
2
undoubtful(adjective, strong, easy, solid, certain)
2
unflappable(adjective, calm, solid, relaxed, certain)
2
well-balanced(adjective, confident, self-confident, poised)
1
able(adjective, strong, easy, solid, certain)
1
absolute(adjective, strong, easy, firm, solid)
1
afraid
1
at ease(expression, adjective, calm, strong, easy)
1
brash(adjective, familiar, arrogant, presumptuous, smug)
1
bumptious(adjective, certain, sure, arrogant, brash)
1
calmed(adjective, calm, relaxed, tranquil, easygoing)
11 years ago|7.6k views|share |citing 
APASmart Define. (2015). self-assured thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/self-assured/thesaurus/synonyms
ChicagoSmart Define. 2015. "self-assured thesaurus" https://smartdefine.org/self-assured/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, self-assured thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/self-assured/thesaurus/synonyms>.
MLASmart Define. "self-assured thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/self-assured/thesaurus/synonyms>