Acrid

[Sarah]

The quality of being acrid or pungent; irritant bitterness;acrimony; as, the acridity of a plant, of a speech.

[Sarah]

Sharp or biting to the taste or smell; bitterly pungent; irritating to the eyes, nose, etc.

[Marquetta]

Unpleasantly bitter or pungent.

[Little_Girl]

An acrid smell or taste is strong and bitter and causes a burning feeling in the throat:

[exinilu]

A [peppery] [burning] [taste]