1. In a detrimental manner
   - detrimentally, noxiously, damagingly, deleteriously, unhealthily

See also: harmful

Antonym: harmlessly

• oil-industry analyst
• oil-rich seed
• oil-soluble
• oil-water interface
• oilbird
• oilcan
• oilcloth
• oiled
• oiler
• oilfield
• oilfish
• oiliness
• oilman
• oilpaper
• oilrig
• oilseed
• oilseed rape
• oilskin
• oilstone
• oilstove
• oily
• oink
• ointment
• Oireachtas
• OIS