| Adj. | 1. | susceptible - (often followed by `of' or `to') yielding readily to or capable of; "susceptible to colds"; "susceptible of proof" unprotected - lacking protection or defense sensitive - responsive to physical stimuli; "a mimosa's leaves are sensitive to touch"; "a sensitive voltmeter"; "sensitive skin"; "sensitive to light" vulnerable - susceptible to attack; "a vulnerable bridge" insusceptible, unsusceptible - not susceptible to |
| 2. | susceptible - easily impressed emotionally impressible, impressionable, waxy - easily impressed or influenced; "an impressionable youngster"; "an impressionable age"; "a waxy mind" |