[adverb]They have always dealt honestly and fairly with their customers.I'll do it tomorrow, honestly I will (= I promise I will do it).I can't honestly (= With certainty) say what time I'll be home.Honestly can be used to emphasize disapproval.Honestly, I'd have thought she'd tell me she was leaving."She didn't even say thank you." "Honestly!"
HONESTLY
Meaning of HONESTLY in English
Cambridge English vocab. Кембриджский английский словарь. 2012