Standard Lemma guide

unofficial

adj · 6 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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ʌn.əˈfɪʃ.əl/
  • US: Recorded audio is listed in the source snapshot.
  • rhymes with -ɪʃəl
  • CMU ARPABET: AH2 N AH0 F IH1 SH AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Not officially established.

Definition source: English Wiktionary via Wiktextract

Examples

  • the unofficial results of the ballot

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Not officially established.

Implicitly true but withheld and/or contradicted by authority.

Definition source: English Wiktionary via Wiktextract

Examples

  • The unofficial reason for invading the nation, however, was to control their resources.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Not acting with official authority.

Definition source: English Wiktionary via Wiktextract

Examples

  • an unofficial adviser

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adj

Meaning 4

Not listed in a national pharmacopeia etc.

Definition source: English Wiktionary via Wiktextract

Topics: medicine, pharmacology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

adjective

Meaning 5

not having official authority or sanction

Definition source: Princeton WordNet 3.0

Examples

  • a sort of unofficial mayor
  • an unofficial estimate
  • he participated in an unofficial capacity

Meaning relationships

Synonyms: none provided

Antonyms: official

6

adjective satellite

Meaning 6

not officially established

Definition source: Princeton WordNet 3.0

Examples

  • the early election returns are unofficial

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Germanic *un- Proto-West Germanic *un- Old English un- Middle English un- English un- English official English unofficial From un- + official.

Across languages

Translations

34 source translations are retained for this English entry.

  • Albanian: jozyrtar — not official
  • Belarusian: неафіцы́йны (njeaficýjny) — not official
  • Bulgarian: неофициален (neoficialen) — not official
  • Chinese Mandarin: 非官方 (fēiguānfāng) — not official
  • Czech: neoficiální — not official
  • Danish: uofficiel — not official
  • Dutch: officieus — not official
  • Esperanto: neoficiala — not official
  • Finnish: epävirallinen — not official
  • French: officieux — not official
  • French: inofficiel — not official
  • German: inoffiziell — not official
  • Greek: ανεπίσημος (anepísimos) — not official
  • Hindi: अनाधिकारिक (anādhikārik) — not official
  • Hindi: अनधिकृत (andhikŕt) — not official
  • Hungarian: nem hivatalos — not official
  • Italian: ufficioso — not official
  • Japanese: 非公認 (hikōnin) — not official
  • Japanese: 非公式 (hikōshiki) — not official
  • Korean: 비공식적 (bigongsikjeok) — not official
  • Latin: inofficialis — not official
  • Māori: manakore — not official
  • Polish: nieoficjalny — not official
  • Portuguese: extraoficial — not official
  • Romanian: neoficial — not official
  • Russian: неофициа́льный (neoficiálʹnyj) — not official
  • Spanish: extraoficial — not official
  • Spanish: oficioso — not official
  • Swedish: inofficiell — not official
  • Turkish: gayriresmi — not official
  • Turkish: gayrı resmi — not official
  • Ukrainian: неофіці́йний (neoficíjnyj) — not official
  • Bulgarian: непотвърден (nepotvǎrden) — implicitly true but unauthorized
  • Japanese: 裏向きの (uramuki no) — implicitly true but unauthorized
Real reading context

unofficial in complete knowledge articles