deleteriously
Adverb
Meaning
deleteriously (comparative more deleteriously, superlative most deleteriously)
In a deleterious manner; harmfully.
Synonyms
negatively
destructively
evilly
injuriously
malignantly
malignly
harmfully
dangerously
alarmingly
detrimentally
mischievously
direly
disadvantageously
perniciously
noxiously
Show all synonyms