Standard Lemma guide

unflappable

adj · 2 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.

  • /ʌnˈflæpəbəl/
  • Australia: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: AH0 N F L AE1 P AH0 B AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Remaining composed and level-headed at all times; impossible to fluster; not becoming frustrated or irritated easily.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: collected, cool, even-keeled, imperturbable, adiaphroistic, apathetic, apathistical, blasé, blithe, deaf, shiftless, dispassionate, dull, enervated, gallionic, halfhearted, heartless, impassive, ineffervescible, insouciant, indifferent, insensible, jaded, languid, languorous, Laodicean, lethargic, listless, lackadaisical, lotophagous, lukewarm, meh, mopey, nonchalant, nonplussed, otiose, phlegmatic, pococurante, spiritless, supine, tepid, torpid, torpedinous, unaroused, uncaring, unconcerned, unenthusiastic, unimpressible, uninterested, unlively, unmoved, untouched, unzealous, world-weary

Antonyms: flappable

2

adjective satellite

Meaning 2

not easily perturbed or excited or upset; marked by extreme calm and composure

Definition source: Princeton WordNet 3.0

Examples

  • hitherto imperturbable, he now showed signs of alarm
  • an imperturbable self-possession
  • unflappable in a crisis

Meaning relationships

Synonyms: imperturbable

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 flap Proto-Indo-European *-tḗr Proto-Indo-European *-dhlom Proto-Indo-European *-dhlis Proto-Italic *-ðlis Latin -bilis Latin -ābilis Old French -ablebor. Middle English -able English -able English unflappable From un- + flap (“to upset, stir”) + -able.

Across languages

Translations

20 source translations are retained for this English entry.

  • Bulgarian: невъзмутим (nevǎzmutim) — remaining composed and level-headed at all times
  • Catalan: impertorbable — remaining composed and level-headed at all times
  • Dutch: onverstoorbaar — remaining composed and level-headed at all times
  • Finnish: järkähtämätön — remaining composed and level-headed at all times
  • French: imperturbable — remaining composed and level-headed at all times
  • German: unerschütterlich — remaining composed and level-headed at all times
  • Hungarian: kizökkenthetetlen — remaining composed and level-headed at all times
  • Hungarian: rendíthetetlen — remaining composed and level-headed at all times
  • Hungarian: higgadt — remaining composed and level-headed at all times
  • Hungarian: szenvtelen — remaining composed and level-headed at all times
  • Hungarian: nyugodt — remaining composed and level-headed at all times
  • Hungarian: blazírt — remaining composed and level-headed at all times
  • Macedonian: нево́збуден (nevózbuden) — remaining composed and level-headed at all times
  • Polish: niewzruszony — remaining composed and level-headed at all times
  • Russian: невозмути́мый (nevozmutímyj) — remaining composed and level-headed at all times
  • Spanish: imperturbable — remaining composed and level-headed at all times
  • Swedish: orubblig — remaining composed and level-headed at all times
  • Swedish: oberörd — remaining composed and level-headed at all times
  • Swedish: osårbar — remaining composed and level-headed at all times
  • Ukrainian: незвору́шний (nezvorúšnyj) — remaining composed and level-headed at all times