WHY NOT...? definition: 1. used to make a suggestion or to express agreement: 2. used to make a suggestion or to express…. Learn more.

Jan 20, 2026 · Why is that so? (for a negative statement) I don't want to go out today. — Why not? (rhetorical) Used to state that one has no objection to and approves of a proposal. Let's have pizza …

Definition of Why not? in the Idioms Dictionary. Why not? phrase. What does Why not? expression mean? Definitions by the largest Idiom Dictionary.

why not definition: ask why something is not true or possible. Check meanings, examples, usage tips, pronunciation, domains, and related words. Discover expressions like "I don't see why not".

Discover the word "WHY NOT" in English: definitions, translations, synonyms, pronunciations, examples, and grammar insights - all in one complete resource.

Note: Used here as a rhetorical question, but "Why not?" can also be used to ask a question, as in, "I'm not going to work today." "Why not?"

Nov 4, 2011 · ‘Why not + infinitive without to’ can be used to make suggestions. ‘Why not arrange a party in his honor?’ (This is a polite way of saying: I think we should arrange a party in his honor.)

Learn the meaning and correct usage of "why not". Our guide provides clear grammar rules and real-world examples from authoritative sources to help you write with confidence.

Why and Why not We use why is short replies to affirmative statements. We use why not in replies to negative statements. Compare: ‘He has decided to quit his job.’ ‘ Why?’ (NOT Why not?) ‘I can’t do …

From Longman Dictionary of Contemporary English why not? used to say that you agree with a suggestion ‘We could invite John and Barbara.’ ‘Yes, why not?’ → why Examples from the Corpus …