Daft means "foolish, wacky, or nutty." like your daft idea of wearing flip-flops to hike through the snow so that you didn't ruin your boots.

When the adjective daft is used, you know something extremely silly or obviously goofy is involved — like setting all your money on fire to keep warm, instead of just using it to buy a coat. Some synonyms for daft are absurd, ridiculous, senseless and idiotic, so if someone calls you "daft," maybe you should rethink what you are trying to accomplish: Is there a better way to do it?

Definitions of daft
  1. adjective
    informal or slang terms for mentally irregular
    synonyms: around the bend, balmy, barmy, bats, batty, bonkers, buggy, cracked, crackers, dotty, fruity, haywire, kookie, kooky, loco, loony, loopy, nuts, nutty, round the bend, wacky, whacky
    afflicted with or characteristic of mental derangement
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