unacceptable Definition

  • 1not satisfactory or allowable
  • 2not pleasing or welcome

Using unacceptable: Examples

Take a moment to familiarize yourself with how "unacceptable" can be used in various situations through the following examples!

  • Example

    His behavior was unacceptable and he was asked to leave the party.

  • Example

    The company's policy on discrimination is completely unacceptable.

  • Example

    The quality of the product was unacceptable, so I returned it to the store.

unacceptable Synonyms and Antonyms

Phrases with unacceptable

  • unacceptable levels

    levels that are too high or too low and therefore not safe or healthy


    The pollution in the river has reached unacceptable levels.

  • behavior that is not appropriate or permissible


    The teacher will not tolerate any unacceptable behavior in her classroom.

  • a level of risk that is too high and therefore not acceptable


    The company decided not to invest in the project because it posed an unacceptable risk.


Summary: unacceptable in Brief

The term 'unacceptable' [ˌʌnəkˈseptəbl] refers to something that is not satisfactory or allowable, and is often used to describe behavior, policies, or product quality. It can be synonymous with 'improper' or 'intolerable,' and is the opposite of 'acceptable.' Phrases like 'unacceptable levels' or 'unacceptable risk' denote a level that is too high or too low and therefore not safe or healthy.

How do native speakers use this expression?