What is the word for an action that is "considered to be frowned upon"?

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Chapters
00:00 What Is The Word For An Action That Is &Quot;Considered To Be Frowned Upon&Quot;?
00:27 Answer 1 Score 13
00:38 Answer 2 Score 15
00:46 Answer 3 Score 14
01:01 Answer 4 Score 16
01:13 Thank you

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Tags
#singlewordrequests

#avk47

ANSWER 1

Score 16

'frowned upon' sounds just right to me. It's general enough to fit all your cases. I don't think a two word locution is breaking the rules here.

ANSWER 2

Score 15

Perhaps, simply inappropriate?

ANSWER 3

Score 14

Maybe taboo. Except for the socks with sandals one. I'd have to go with forbidden or illegal. (At least it should be)

ANSWER 4

Score 13

Perhaps you're looking for the adjective verboten? If that's a bit too strong, you might try gauche.