pungent

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Affecting the organs of taste or smell with a sharp acrid sensation.
• adjective Penetrating, biting, or caustic.
• adjective To the point; sharp.
• adjective Pointed.

from The Century Dictionary.

• In ichthyology, stiff and sharp-pointed: as, a pungent spine.
• Piercing; sharp.
• Specifically — In botany, terminating gradually in a hard sharp point, as the lobes of the holly-leaf.
• In entomology, fitted for piercing or penetrating: as, a pungent ovipositor.
• Sharp and painful; poignant.
• Affecting the tongue like small sharp points; stinging; acrid.
• Sharply affecting the sense of smell: as, pungent snuff.
• Hence, sharply affecting the mind; curt and expressive; caustic; racy; biting.
• Synonyms Sharp, stinging, keen, peppery, acrid, caustic. Piquant, Pungent, Poignant. That which is piquant is just tart enough to be agreeable; that which is pungent is so tart that, if it were more so, it would be positively disagreeable; that which is poignant is likely to prove actually disagreeable to most persons. Pungent is manifestly figurative when not applied to the sense of taste, or, less often, of smell; piquant is similar, but less forcible; poignant is now used chiefly of mental states, etc., as poignant grief, or of things affecting the mind, as poignant wit.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Causing a sharp sensation, as of the taste, smell, or feelings; pricking; biting; acrid.
• adjective Sharply painful; penetrating; poignant; severe; caustic; stinging.
• adjective (Bot.) Prickly-pointed; hard and sharp.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective Having a strong odor that stings the nose, said especially of acidic or spicy substances.
• adjective Having a strong taste that stings the tongue, said especially of hot (spicy) food, which has a strong and sharp or bitter taste.
• adjective Having a sharp and stiff point.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• adjective strong and sharp
• adjective capable of wounding