Apprehensive means uneasy about what is about to happen. Feel apprehensive, apprehensive about the result, slightly apprehensive.
It is about the future specifically — you are apprehensive before a thing and anxious in general, which is the useful distinction. It takes about or of. Note apprehension, which means both this feeling and the arrest of a suspect; and that the Latin means to seize or grasp, so apprehending a fear and apprehending a thief are the same word.
1adjectiveapprehensiveUneasy about what is about to happen.
“She felt apprehensive about starting her new job on Monday.”
apprehensive is a quality of unease.
Latin apprehendere means to seize or grasp — ad plus prehendere. Comprehend, prehensile and prison come from the same grasping.
Latin
apprehensīvus
English, today
apprehensive
Built from
From Latin apprehensīvus, from apprehensus, perfect passive participle of apprehendō (“to apprehend, understand, learn”) + -īvus (“-ive”).
Etymology from Wiktionary, CC BY-SA