English Dictionary

Sharp and harsh, or bitter and not, to the taste; pungent; as, acrid salts.
Source : opted (1700)  - auto

Causing heat and irritation; corrosive; as, acrid secretions.
Source : opted (1701)  - auto

Caustic; bitter; bitterly irritating; as, acrid temper, mind, writing.
Source : opted (1702)  - auto