acrid
Concise Oxford English Dictionary © 2008 Oxford University Press:
acrid /ˈakrɪd/
▶adjective unpleasantly bitter or pungent.
– derivatives
acridity noun,
acridly adverb.
acridity noun,
acridly adverb.
– origin C18: formed irregularly from L. acer, acri- ‘sharp, pungent’ + -id1; prob. influenced by acid.
'acrid' also found in these Oxford entries:

