noxious

adjectives

injurious to physical or mental health
"noxious chemical wastes"; "noxious ideas"
noxious
is derived from
noxiousness
antonym
innocuous
is similar to
exceedingly harmful
baneful, deadly, pernicious, pestilent
is similar to
harmful to the mind or morals
"corrupt judges and their corrupting influence"; "the vicious and degrading cult of violence"
corrupting, degrading
is similar to
causing blisters
vesicant, vesicatory
see also
causing or capable of causing harm
"too much sun is harmful to the skin"; "harmful effects of smoking"
harmful
see also
of or relating to or caused by a toxin or poison
"suffering from exposure to toxic substances"
toxic
see also
detrimental to physical or moral well-being
"unwholesome food"; "unwholesome habits like smoking"
unwholesome