Slackadaisical
adj
adj ·Rare ·Advanced level
Definitions
Adjective
- 1 Slipshod and lazy; lacking diligence and effort.
"Usually it is when a co-worker is making a mess of things, you know it, and your own workload is increasing in a direct inverse ratio to his slackadaisical ways."
Example
More examples"Usually it is when a co-worker is making a mess of things, you know it, and your own workload is increasing in a direct inverse ratio to his slackadaisical ways."
Etymology
Blend of slack + lackadaisical.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.