His lackadaisical attitude to studying explains his poor grades.
Source: tatoeba (952681)
Ranked by relevance and common usage.
Keep "lackadaisical" when the sentence already sounds natural, when a synonym would add unintended emphasis, or when readers need the most familiar wording. A synonym should clarify or sharpen the message, not simply make the sentence look more varied.
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Choose a synonym only if it keeps the core idea of "lackadaisical" intact in the sentence you are editing.
Check whether the replacement sounds more formal, casual, emotional, technical, or forceful than the original word.
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Review note: Synonym lists are ranked with lexical data and reviewed for practical writing value. Use the comparison notes, sentence evidence, and source labels together; a high-ranking synonym can still be wrong when the audience, register, or grammar changes.
After choosing a replacement for "lackadaisical", read the sentence once for meaning and once for rhythm. The best synonym should feel natural in the full sentence, not only accurate in a word list.
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6 total sentences available.
His lackadaisical attitude to studying explains his poor grades.
Source: tatoeba (952681)
The company's managers had a very lackadaisical attitude towards the safety of their workers.
Source: tatoeba (2941928)
the lackadaisical look on his face
Source: wiktionary
I, at one time, used to go and take a hand at cribbage with a friend, and afterwards discuss a cold sirloin of beef, and throw out a few lackadaisical remarks, in a way to please myself, but it would not do long.
Source: wiktionary
Showing 4 of 6 available sentences.
Closest matches include apathetic, apathetic, ataractic, backward, benumbed.
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.