prudish or puritanical
WordReference Random House Learner's Dictionary of American English © 2025
strait-laced or straight-laced /ˈstreɪtˌleɪst/USA pronunciation
adj.
WordReference Random House Unabridged Dictionary of American English © 2025- overly strict in conduct or morality:strait-laced ladies.
- tightly laced, as an upper part of a dress.
strait-laced
(strāt′lāst′),USA pronunciation adj.
strait-lac′ed•ly
(strāt′lā′sid lē, -lāst′lē),USA pronunciation adv.
strait′-lac′ed•ness, n.
- excessively strict in conduct or morality; puritanical;
prudish:strait-laced censors. - tightly laced, as a bodice.
- wearing tightly laced garments.
- late Middle English 1400–50
Collins Concise English Dictionary © HarperCollins Publishers::
'strait-laced' also found in these entries (note: many are not synonyms or translations):