Tremulous \Trem"u*lous\, a. [L. tremulus, fr. tremere to tremble. See {Tremble}.] 1. Shaking; shivering; quivering; as, a tremulous limb; a tremulous motion of the hand or the lips; the tremulous leaf of the poplar. 2. Affected with fear or timidity; trembling. The tender, tremulous Christian. --Dr. H. More. -- {Trem"u*lous*ly}, adv. -- {Trem"u*lous*ness}, n.