tremulous
trem.u.lous \-l*s\ aj [L tremulus - more at TREMBLE] 1: characterized by or affected with trembling or tremors 2: affected with timidity : TIMOROUS 3: such as is caused by a tremulous state 4: exceedingly sensitive - trem.u.lous.ly av
Webster's English Dictionarytrem.u.lous \-l*s\ aj [L tremulus - more at TREMBLE] 1: characterized by or affected with trembling or tremors 2: affected with timidity : TIMOROUS 3: such as is caused by a tremulous state 4: exceedingly sensitive - trem.u.lous.ly av