unacceptable

1. 1
   adjective

   Not good enough to be allowed, agreed to, or approved.

   Like food that is too spoiled to serve to anyone.

   Her rude behavior at dinner was completely unacceptable.

   It is unacceptable to show up late for work every single day.

   Similarintolerable, unsatisfactory, inadmissible, inexcusable, objectionable

   Oppositeacceptable, satisfactory, tolerable, permissible

   Note
2. 2
   noununcountable

   A thing or action that cannot be allowed, agreed to, or approved.

   Children slowly learn the difference between the acceptable and the unacceptable.

   For her, cruelty was always the unacceptable, and she spoke out against it.

   Oppositeacceptable

   Note
3. 3
   adjective

   Not following the normal way that words are used by speakers.

   Like putting your shoes on the wrong feet: it just doesn't fit the usual way things are done.

   In English, that sentence feels unacceptable because the words come in the wrong order.

   Saying "he go store" sounds unacceptable to most English speakers.

   Similarungrammatical, unidiomatic, incorrect, improper

   Oppositeacceptable, grammatical, idiomatic

   Note

Showing meanings only. Show all 3