Pungent, having a sharply strong taste or smell. "the pungent smell of frying onions"

Bitter, having a sharp, pungent taste or smell; not sweet. "the raw berries have an intensely bitter flavor" 

Astringent, causing the contraction of body tissues, typically of the skin."an astringent skin lotion"

Sweet, having the pleasant taste characteristic of sugar or honey; not salty, sour, or bitter. "a cup of hot sweet tea"

Sour, having an acid taste like lemon or vinegar. "she sampled the wine and found it was sour"

Salty, tasting of, containing, or preserved with salt.