havoc

1 a state in which everything is out of order computer network problems created havoc throughout the office Synonyms chance-medley, confusion, disarrangement, disarray, dishevelment, disorder, disorderedness, disorderliness, disorganization, free-for-all, chaos, heck, hell, jumble, mare's nest, mess, messiness, misorder, muddle, muss, shambles, snake pit, tumble, welterRelated Words anarchy, lawlessness, misrule, riot; knot, snarl, tangle; labyrinth, maze, web; maelstrom, storm; bollix, clutter, litter, mishmash, shuffle; hodgepodge, medley, miscellany, morass, motleyNear Antonyms method, pattern, plan, systemAntonyms order, orderliness

2 the state or fact of being rendered nonexistent, physically unsound, or useless the powerful hurricane wreaked havoc all along the coast Synonyms annihilation, decimation, demolishment, demolition, desolation, devastation, extermination, extinction, destruction, loss, mincemeat, obliteration, ruin, ruination, wastage, wreckageRelated Words depredation, despoilment, despoliation; breakup, collapse, disintegration, dissolution; assassination, execution, killing, massacre, slaughter; dismantlement, effacement, eradicationNear Antonyms rescue, salvage, salvation, saving; conservation, preservation, protection; reclamation, reconstruction, re-creation, refurbishment, regeneracy, remodeling, renovation, restorationAntonyms building, construction, erection, raising