This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Lacking spirit, liveliness, or interest; languid: "There'll be no time to correct lackadaisical driving techniques after trouble develops” ( William J. Hampton).

adj. Showing no interest or enthusiasm.

adj. Affectedly pensive; languidly sentimental; dreamy.

adj. Lacking spirit or liveliness; lethargic; listless; languid.

adj. Indolent; lazy; idle, especially in a dreamy manner.

Sentimentally woebegone; languid; listless; affected. See extract under lackthought.

adj. lacking spirit or liveliness

adj. idle or indolent especially in a dreamy way

"Critics ravaged him for what they called his lackadaisical approach to such party-building activities as filling precinct committee openings, mounting a technology-driven Election Day get-out-the-vote operation and absentee ballot and voter registration initiatives."

lethargic    unenrgetic    idle   

dreamy    lethargic    listless    languid    indolent    lazy    uninterested    unenthusiastic   

lethargic    nonchalant    prejudic    inattentive    anæmic    unexcitable    mawkish    apathetic    flirtatious    unfearing