Definition of lackadaisical in English:

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Pronunciation: /ˌlakəˈdeɪzɪk(ə)l/


Lacking enthusiasm and determination; carelessly lazy: a lackadaisical defence left Spurs adrift in the second half
More example sentences
  • The lackadaisical attitude of the members is one of the main impediments to the club expanding its activities.
  • There was a lackadaisical attitude to the extension of the copyright term in the European Union.
  • I don't want people to get the impression the school will have a lackadaisical approach to teaching though.
careless, lazy, lax, unenthusiastic, half-hearted, uninterested, lukewarm, indifferent, uncaring, unconcerned, casual, offhand, blasé, insouciant, leisurely, relaxed;
apathetic, languid, languorous, lethargic, limp, listless, sluggish, enervated, spiritless, aimless, bloodless, torpid, passionless, idle, indolent, shiftless, inert, impassive, feeble
British vulgar slang half-arsed



Pronunciation: /lakəˈdeɪzɪk(ə)li/
Example sentences
  • They perpetuate the lies and the fairytales that they have been told since childhood lackadaisically.
  • During my visit to the Beijing New Art Projects the Gao brothers walked out from behind their glass office and lackadaisically circulated among the visitors.
  • If during the year a team plays lackadaisically because of the leadership of the coach, this factor will be intensified.




Mid 18th century (also in the sense 'feebly sentimental'): from lackaday or its obsolete extended form lackadaisy.

  • ‘Feebly sentimental’ was among the early meanings of lackadaisical which comes from the archaic interjection lackaday (earlier alack-a-day), and its extended form lackadaisy.

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