3
dry
3
easygoing(adjective, calm, relaxed, tranquil, serene)
3
gloomy(adjective, dull, dark)
3
grim-faced(adjective, dejection)
3
grim-visaged(adjective, dejection)
3
level-headed(adjective, unexcitable)
3
level headed(expression, idiom)
3
long-faced(adjective, dejection)
3
momentous(big, heavy, substantial)
3
po-faced
3
proper(calm, good, cool, affected, unassuming)
3
prosaic
3
rigid
3
self-controlled(adjective, unexcitable)
3
stable(adjective, firm, solid, thoughtful, fixed)
3
starchy(adjective, set, restrained)
3
stodgy(adjective, dull, stuffy)
3
stoical(adjective, excitability, unexcitable)
3
straight
3
together(adjective, calm, relaxed, tranquil, easygoing)
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APASmart Define. (2016). staid thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/staid/thesaurus/synonyms
ChicagoSmart Define. 2016. "staid thesaurus" https://smartdefine.org/staid/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, staid thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/staid/thesaurus/synonyms>.
MLASmart Define. "staid thesaurus" 19 February 2016. Web. 22 September 2026. <https://smartdefine.org/staid/thesaurus/synonyms>