We'd been a little apprehensive about their visit.
I was apprehensive that something would go wrong.
Some had apprehensive looks on their faces.
—apprehensively adverb:WORD FOCUS: worried
'What's wrong?' I asked apprehensively.
similar words: anxious, concerned, apprehensive, uneasy, bothered, preoccupied, stressed (out)
➔ See also worried