Basic Guidelines For English Spellings
Done with little effort or care; incompetent or inadequate.
foolish, silly, unintelligent, idiotic, brainless, mindless, scatterbrained, crackbrained, nonsensical, senseless, irresponsible, unthinking, ill-advised, ill-considered, inept, witless, damfool, unwise, injudicious, indiscreet, short-sighted
- ‘a half-arsed attempt to rectify the problem’
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