if not

conjunction
UK: /ɪf nɒt/
US: /ɪf nɑːt/

  1. Used to introduce a condition under which the statement will not be true.

    1. Please call me if not busy. [ ] [ ]
    2. The game will be canceled if not enough players are there by this afternoon. [ ] [ ]

  2. Unless; used to express a condition or alternative.

    1. I'll see you tomorrow if not, next week. [ ] [ ]
    2. We need to leave by 6 AM if not we'll miss our flight to Barcelona in the morning. [ ] [ ]

Synonyms

otherwise or else unless
if not adverb

  1. Used to indicate an alternative or a consequence of something not happening.

    1. You should hurry, if not, you'll be late. [ ] [ ]
    2. Try to be quiet, if not, I will ask you to leave the classroom immediately. [ ] [ ]

Frequently Asked Questions

The word "if not" in English means: Used to introduce a condition under which the statement will not be true., Unless; used to express a condition or alternative..

The phonetic transcription of "if not" is /ɪf nɒt/ in British English and /ɪf nɑːt/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "if not": otherwise, or else, unless.

Example usage of "if not": "Please call me if not busy.". More examples on the page.