Apprehensive
From BiblePortal Wikipedia
Apprehensive [1]
(1): (a.) Capable of apprehending, or quick to do so; apt; discerning.
(2): (a.) Knowing; conscious; cognizant.
(3): (a.) Relating to the faculty of apprehension.
(4): (a.) Anticipative of something unfavorable' fearful of what may be coming; in dread of possible harm; in expectation of evil.
(5): (a.) Sensible; feeling; perceptive.