13 entries under unthinkable topic. ×

4
restricted(adjective, offensive, permitted, prohibited)
2
unacceptable(adjective, offensive, permitted, prohibited)
2
unmentionable(adjective, offensive, permitted, prohibited)
1
anathema(adjective, offensive, permitted, prohibited)
1
not allowed(expression, offensive, permitted, prohibited)
1
off limits(expression, adjective, offensive, permitted, prohibited)
1
out of bounds(expression, adjective, idiom, offensive, permitted)
0
beyond the pale(expression, idiom, offensive, permitted, prohibited)
0
disapproved(offensive, permitted, prohibited, unauthorized)
0
frowned on(expression, offensive, permitted, prohibited)
0
permitted(offensive, prohibited, unmentionable)
0
reserved(offensive, permitted, prohibited, unmentionable)
0
ruled out(expression, offensive, permitted, prohibited)
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APASmart Define. (2015). proscribed thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/proscribed/thesaurus/synonyms
ChicagoSmart Define. 2015. "proscribed thesaurus" https://smartdefine.org/proscribed/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, proscribed thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/proscribed/thesaurus/synonyms>.
MLASmart Define. "proscribed thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/proscribed/thesaurus/synonyms>