hell–for–leather

having or showing a lack of concern for the consequences of one's actions having been behind for most of the race, the stock car driver made a hell-for-leather dash to the finish Synonyms daredevil, devil-may-care, foolhardy, harum-scarum, hell-for-leather, irresponsible, kamikazeRelated Words adventurous, audacious, bold, daring, venturesome; hasty, headlong, hotheaded, impetuous, precipitate, rash, wild; blithe, carefree, happy-go-lucky, madcap, slaphappy; nonchalant, unconcerned, unworried; careless, freewheeling, heedless, inattentive, incautious, mindless, regardless, unheeding, unmindful; feckless, inconsiderate, thoughtless, unthinkingNear Antonyms careful, cautious, circumspect, heedful; overcareful, overcautious, timidAntonyms responsible

with great speed we ran hell-for-leather out of that spooky house Synonyms apace, briskly, chop-chop, double-quick, fleetly, full tilt, hastily, hell-for-leather, hot, lickety-split, posthaste, presto, pronto, quick, quickly, rapidly, snappily, soon, speedily, swift, swiftlyRelated Words immediately, promptly, readily; impetuously, impulsively, rashly, recklessly; abruptly, suddenly; energetically, vigorouslyNear Antonyms laggardly, lingeringly, ploddingly, sluggishly; deliberately, leisurely; belatedly, delinquently, tardilyAntonyms slow, slowly