apprehensive

adjective

viewing the future with anxiety or alarm : feeling or showing fear or apprehension about the future

Pronunciation: /ˌæpɹɪˈhɛnsɪv/

Etymology: From Latin apprehensīvus, from apprehensus, perfect passive participle of apprehendō (“to apprehend, understand, learn”) + -īvus (“-ive”).

Anticipating something with anxiety, fear, or doubt; reluctant.
“This convinc'd me that there was no going on Shore for us in the Night upon that Coaſt, and how to venture on Shore in the Day was another Queſtion too; for to have fallen into the Hands of any of the Savages, had been as bad as to have fallen into the Hands of Lyons and Tygers; at leaſt we were equally apprehenſive of the Danger of it.”
“But Claggart's was no vulgar form of the passion. Nor, as directed toward Billy Budd, did it partake of that streak of apprehensive jealousy that marred Saul's visage perturbedly brooding on the comely young David. Claggart's envy struck deeper.”
Perceptive; quick to learn; capable of understanding using one's intellect.
“More fond of Miracles, than apprehensive of Truth.”

Etymology: From Latin apprehensīvus, from apprehensus, perfect passive participle of apprehendō (“to apprehend, understand, learn”) + -īvus (“-ive”).

A mood indicating an undesired outcome.
“In 16.66 the non-visual apprehensive is used with the third-person.”