adj. severely destructive; "cataclysmic nuclear war"; "a cataclysmic earthquake"

adj. (of events) having extremely unfortunate or dire consequences; bringing ruin; "the stock market crashed on Black Friday"; "a calamitous defeat"; "the battle was a disastrous end to a disastrous campaign"; "such doctrines, if true, would be absolutely fatal to my theory"- Charles Darwin; "it is fatal to enter any war without the will to win it"- Douglas MacArthur; "a fateful error"

adj. causing fear or dread or terror; "the awful war"; "an awful risk"; "dire news"; "a career or vengeance so direful that London was shocked"; "the dread presence of the headmaster"; "polio is no longer the dreaded disease it once was"; "a dreadful storm"; "a fearful howling"; "horrendous explosions shook the city"; "a terrible curse"

adj. controlled or decreed by fate; predetermined; "a fatal series of events"

adj. causing or capable of causing death; "a fatal accident"; "a deadly enemy"; "mortal combat"; "a mortal illness"

adj. wreaking or capable of wreaking complete destruction; "possessing annihilative power"; "a devastating hurricane"; "the guns opened a withering fire"

adj. characterized by physical or psychological maltreatment; "abusive punishment"; "argued...that foster homes are abusive"

adj. capable of harming; "bad air"; "smoking is bad for you"

adj. harmful to living things; "deleterious chemical additives"

adj. (used of statements) harmful and often untrue; tending to discredit or malign

adj. extremely harmful; bringing physical or financial ruin; "a catastrophic depression"; "catastrophic illness"; "a ruinous course of action"

adj. tending to hinder the achievement of a goal

adj. tending to favor preconceived ideas; "the presence of discriminatory or prejudicial attitudes in the white population"

adj. working or spreading in a hidden and usually injurious way; "glaucoma is an insidious disease"; "a subtle poison"

adj. deliberately causing harm or damage; "mischievous rumors and falsehoods"

adj. having a tendency to cause harm

adj. causing physical or especially psychological injury; "a stabbing remark"; "wounding and false charges of disloyalty"