B2showing that you like or approve of someone or something: We have had a favourable response to the plan so far.Showing respect and admirationB2making you support or approve of someone or something: She made a very favourable impression on us.Admirable and admiredC2giving you an advantage or more chance of success: favourable weatherconditionsNote: opposite unfavourableUseful or advantageousfavourablyUK(USfavorably)