Phrase guide

why not

adv · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

adv

Meaning 1

Why is that so? (for a negative statement)

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Examples

  • I don't want to go out today. — Why not?

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adv

Meaning 2

Used to state that one has no objection to and approves of a proposal.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Qualifier: rhetorical

Examples

  • Let's have pizza for lunch. — Yeah, why not?

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adv

Meaning 3

Used to introduce a proposal.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Qualifier: rhetorical

Examples

  • Why not try turning the handle in the other direction to see if that opens the window?

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Across languages

Translations

76 source translations are retained for this English entry.

  • Chinese Mandarin: 何不 (hébù) — why is that not true
  • Chinese Mandarin: 為什麼不呢 /为什么不呢 (wèishéme bù ne) — why is that not true
  • Chinese Mandarin: 為什麼 /为什么 (wèishénme) — why is that not true
  • Danish: hvorfor ikke — why is that not true
  • Esperanto: kial ne — why is that not true
  • Faroese: hví ikki — why is that not true
  • Finnish: miksi ei — why is that not true
  • Finnish: miksei — why is that not true
  • French: pourquoi pas — why is that not true
  • German: warum nicht — why is that not true
  • Icelandic: af hverju ekki — why is that not true
  • Icelandic: hví ekki — why is that not true
  • Italian: perché no — why is that not true
  • Japanese: 当たり前でしょ (atarimaedesho) — why is that not true
  • Latin: cūr nōn — why is that not true
  • Latin: quidnī — why is that not true
  • Persian: چرا (čerâ) — why is that not true
  • Portuguese: por que não — why is that not true
  • Russian: а почему́ (a počemú) — why is that not true
  • Russian: а что́ так (a štó tak) — why is that not true
  • Slovene: zakaj ne — why is that not true
  • Spanish: por qué no — why is that not true
  • Swedish: varför inte — why is that not true
  • Tagalog: bakit hindi — why is that not true
  • Thai: ทําไมไม่ — why is that not true
  • Arabic: لِمَ لَا (lima lā) — state one has no objection
  • Azerbaijani: niyə də yox — state one has no objection
  • Bulgarian: защо пък не (zašto pǎk ne) — state one has no objection
  • Chinese Mandarin: 好的 (hǎo de) — state one has no objection
  • Danish: hvorfor ikke — state one has no objection
  • Esperanto: kial ne — state one has no objection
  • Faroese: hví ikki — state one has no objection
  • Finnish: miksipä ei — state one has no objection
  • Finnish: mikä ettei — state one has no objection
  • Finnish: mikä jottei — state one has no objection
  • Finnish: mikäpäs siinä — state one has no objection
  • Finnish: vois — state one has no objection
  • French: pourquoi pas — state one has no objection
  • German: warum nicht — state one has no objection
  • German: wieso nicht — state one has no objection
  • Hebrew: לָמָּה לֹא (láma ló) — state one has no objection
  • Hungarian: miért ne — state one has no objection
  • Icelandic: af hverju ekki — state one has no objection
  • Icelandic: hví ekki — state one has no objection
  • Italian: perché no — state one has no objection
  • Japanese: もちろん (mochiron) — state one has no objection
  • Latin: quid ni — state one has no objection
  • Norwegian Bokmål: hvorfor ikke — state one has no objection
  • Persian: چرا که نه؟ (čerâ ke na?) — state one has no objection
  • Polish: czemu nie — state one has no objection
  • Portuguese: por que não — state one has no objection
  • Russian: почему́ бы и нет (počemú by i net) — state one has no objection
  • Serbo-Croatian: зашто да не — state one has no objection
  • Serbo-Croatian: zašto da ne — state one has no objection
  • Slovene: zakaj pa ne — state one has no objection
  • Spanish: por qué no — state one has no objection
  • Swedish: varför inte — state one has no objection
  • Tagalog: bakit hindi — state one has no objection
  • Turkish: neden olmasın — state one has no objection
  • Ukrainian: чому́ б і ні́ (čomú b i ní) — state one has no objection
  • Chinese Mandarin: 要不 (yàobù) — introduce a proposal
  • Danish: hvorfor ikke — introduce a proposal
  • Finnish: miksi ei — introduce a proposal
  • French: pourquoi ne pas — introduce a proposal
  • Icelandic: af hverju ekki — introduce a proposal
  • Latin: quid ni — introduce a proposal
  • Navajo: dooísh léiʼ — introduce a proposal
  • Norwegian Bokmål: hvorfor ikke — introduce a proposal
  • Polish: czemu nie — introduce a proposal
  • Polish: dlaczego nie — introduce a proposal
  • Polish: może by — introduce a proposal
  • Portuguese: por que não — introduce a proposal
  • Russian: почему́ бы не (počemú by ne) — introduce a proposal
  • Spanish: por qué no — introduce a proposal
  • Swedish: varför inte — introduce a proposal
  • Tagalog: bakit hindi — introduce a proposal