3
permissive(adjective, attitude, behavior, sexual moral, sexual activity)
3
perverted(adjective, attitude, behavior, sexual moral, sexual activity)
3
phlegmatic(adjective, calm, quiet, cool, indifferent)
3
promiscuous(adjective, attitude, behavior, sexual moral, sexual activity)
3
reliable
3
reserved(adjective, cool, blank, aloof, unemotional)
3
self-confident(certain, sure, guaranteed)
3
sex-positive(adjective, attitude, behavior, sexual moral, sexual activity)
3
solemn(adjective, calm, cool, dignified)
3
temperate(adjective, calm, quiet, cool, smooth)
3
together(adjective, calm, reasonable, sensible, relaxed)
3
uninhibited(adjective, attitude, behavior, sexual moral, sexual activity)
3
willing(adjective, attitude, behavior, sexual moral, sexual activity)
3
work well under pressure
2
casual(adjective, calm, cool, relaxed, unruffled)
2
cold-blooded(adjective, calm, cool, detached, blank)
2
cool as cucumber(expression, adjective, idiom, calm, quiet)
2
deadpan(adjective, calm, blank, unemotional, composed)
2
dull(calm, unemotional, composed)
2
emotionless(adjective, calm, cool, blank, aloof)
11 years ago|5k views|share |citing 
APASmart Define. (2015). unflappable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/unflappable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unflappable thesaurus" https://smartdefine.org/unflappable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, unflappable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/unflappable/thesaurus/synonyms>.
MLASmart Define. "unflappable thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/unflappable/thesaurus/synonyms>