21
prim(adjective, plain, modest, stiff, particular)
16
prudish(adjective, tough, correct, severe, firm)
15
puritanical(adjective, tough, correct, severe, firm)
14
rigid(adjective, tough, correct, severe, firm)
12
prissy(adjective, plain, solid, particular, fussy)
12
stuffy(adjective, tough, correct, severe, firm)
11
priggish(adjective, plain, solid, particular, fussy)
10
strict(adjective, severe, authoritarian, prudish, puritanical)
9
proper(adjective, correct, plain, decent, particular)
9
severe(adjective, severe, stern, uncompromising, puritanical)
9
stern(adjective, tough, severe, firm, harsh)
8
stiff(adjective, informal, prudish)
7
squeamish(adjective, finicky, puritanical, nauseated)
7
victorian(adjective, plain, particular, fussy, genteel)
6
austere(adjective, tough, severe, firm, harsh)
6
formal
6
narrow-minded(adjective, intolerant, biased)
6
old-maidish(adjective, plain, genteel, prudish)
5
hidebound(adjective, severe)
5
square(adjective, tough, correct, severe, firm)
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APASmart Define. (2015). strait-laced thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/strait-laced/thesaurus/synonyms
ChicagoSmart Define. 2015. "strait-laced thesaurus" https://smartdefine.org/strait-laced/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, strait-laced thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/strait-laced/thesaurus/synonyms>.
MLASmart Define. "strait-laced thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/strait-laced/thesaurus/synonyms>