Meaning of “honestly” - Learner’s Dictionary

honestly

adverb uk us /ˈɒnɪstli/
EMPHASIZE

B1 used to emphasize that you are telling the truth:

Thanks, but I honestly couldn't eat another piece of cake.
HONEST

B2 in an honest way

ANNOYED

used to show that you are annoyed or do not approve of something:

Honestly! He should have been here hours ago.

(Definition of “honestly” from the Cambridge Learner’s Dictionary © Cambridge University Press)