Synonyms of strait-laced

1 Syllable

prim, stiff, strict

2 Syllables

primmer, priggish, blue-nose, prissy, squeamish, stuffy, starchier, stoner, square, starchy, rigid, stricter, proper, cleanlier, strictest, uptight

3 Syllables

button-down, demurer, spic-and-span, victorian, old-maidish, severest, severer, bluenose

4 Syllables

overmodest, iron-handed, narrow-minded

5 Syllables

puritanical, unpermissive