2
permitted
2
priggish
2
prissy
2
prudish
2
puritanical
2
regular
2
satisfactory
2
square-toed
2
straight-laced
2
straightlaced
2
strait-laced
2
straitlaced
2
tight-laced
2
time-sensitive
2
victorian
1
abetted
1
advisable(adjective, wise, unwise, recommended)
1
all right
1
allowed
1
approved
10 years ago|4k views|share |citing 
APASmart Define. (2016). improper thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/improper/thesaurus/antonyms
ChicagoSmart Define. 2016. "improper thesaurus" https://smartdefine.org/improper/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2016, improper thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/improper/thesaurus/antonyms>.
MLASmart Define. "improper thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/improper/thesaurus/antonyms>