un·damped \|ən+\adjective Etymology:un- (I) + damped, past participle of damp 1.: not stifled or checked : not depressed < proceed with undamped ardor > 2.: not checked or retarded by a damper < undamped vibrations > < undamped musical strings > 3.: not dampened by moisture 4.of an electrical or mechanical oscillation: not damped : maintained with undiminished amplitude