Adjectives

(s)implicative, suggestivetending to suggest or imply“artifacts suggestive of an ancient society”, “an implicative statement”
(s)indicative, indicatory, revelatory, significative, suggestive(usually followed by `of') pointing out or revealing clearly“actions indicative of fear”
(s)suggestivetending to suggest something improper or indecent“a suggestive nod”, “suggestive poses”