Synonyms and Antonyms of challenging
1 requiring considerable physical or mental effort an exceptionally challenging brainteaser Synonyms of challenging arduous, Augean, backbreaking, hard, demanding, difficult, effortful, exacting, formidable, grueling (or gruelling), heavy, hellacious, herculean, killer, laborious, moiling, murderous, pick-and-shovel, rigorous, rough, rugged, severe, stiff, strenuous, sweaty, tall, testing, toilsome, tough, uphillWords Related to challenging abstract, abstruse, complex, complicated, elusive, hairy, insoluble, intricate, involved, knotty, opaque, problematic (also problematical), recondite, serious, spiny, stubborn, thorny, ticklish, tricky; bruising, burdensome, exhausting, labored, onerous, oppressive, stressful, taxing, tight, trying; annoying, bothersome, distressing, irksome, troublesome, vexatious; grievous, grim, strict, stringent; brutal, cruel, inhuman, painfulNear Antonyms of challenging achievable, clear, doable, elementary, manageable, uncomplicated; comforting, gentle, painless, relaxed, smooth, soothing; accessible, friendly, idiotproof, user-friendlyAntonyms of challenging cheap, easy, effortless, facile, light, mindless, simple, soft, undemanding
2 requiring much time, effort, or careful attention a challenging test designed to whittle down the number of contestants Synonyms of challenging arduous, burdensome, demanding, exacting, grueling (or gruelling), killing, laborious, onerous, persnickety, taxing, toilsomeWords Related to challenging difficult, formidable, hard, herculean, rough, rugged, stiff, strenuous, testing, tough; oppressive, trying; rigid, rigorous, severe, stern, strict, stringentNear Antonyms of challenging easy, effortless, facile, simple, smoothAntonyms of challenging light, nondemanding, unchallenging, undemanding
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