Thesaurus

hellacious

adjective

Synonyms and Antonyms of hellacious

  1. 1 extreme in degree, power, or effect the hellacious heat was more than we could bear Synonyms acute, almighty, blistering, deep, dreadful, excruciating, explosive, exquisite, fearful, fearsome, ferocious, fierce, frightful, furious, ghastly, hard, heavy, heavy-duty, intense, intensive, keen, profound, terrible, vehement, vicious, violentRelated Words accentuated, aggravated, concentrated, deepened; emphasized, enhanced, heightened, intensified, magnified; stressed; exhaustive, thorough; harsh, rigorous, severeNear Antonyms feeble, weak; shallow, superficial; moderated, qualified; alleviated, eased, lightened, toned (down); abated, decreased, diminished, lessened, reduced, subduedAntonyms light, moderate, soft

  2. 2 requiring considerable physical or mental effort the pioneers survived a particularly hellacious river crossing with their covered wagon barely in one piece Synonyms arduous, Augean, backbreaking, challenging, demanding, difficult, effortful, exacting, formidable, grueling (or gruelling), heavy, hard, herculean, killer, laborious, moiling, murderous, pick-and-shovel, rigorous, rough, rugged, severe, stiff, strenuous, sweaty, tall, testing, toilsome, tough, uphillRelated Words 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 achievable, clear, doable, elementary, manageable, uncomplicated; comforting, gentle, painless, relaxed, smooth, soothing; accessible, friendly, idiotproof, user-friendlyAntonyms cheap, easy, effortless, facile, light, mindless, simple, soft, undemanding


Learn More about hellacious


Seen and Heard

What made you want to look up hellacious? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

sad or melancholy

Get Word of the Day daily email!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!