harmful

adj 1: able or likely to do harm

2: injurious to physical or mental health; "noxious chemical

wastes"; "noxious ideas" [syn: {noxious}] [ant: {innocuous}]

3: causing or capable of causing harm; "too much sun is harmful

to the skin"; "harmful effects of smoking" [ant: {harmless}]

4: constituting a disadvantage [syn: {disadvantageous}] [ant: {advantageous}]

5: contrary to your interests or welfare; "adverse

circumstances"; "made a place for themselves under the

most untoward conditions" [syn: {adverse}, {inauspicious},

{untoward}]

6: tending to cause great harm [syn: {evil}, {injurious}]