Which type of adverb is certainly and definitely? Are they adverbs of manner? Share with your friends Share 0 Neha Susan Aby answered this Yes its Adverb of Manner -1 View Full Answer Udit Shekar answered this adverb of manner -1 Atharv Awasthi answered this yes -1 Alishba Hashmi answered this yes, they are the adverbs of manner. -1 Yogender Singh answered this YES,IT IS A ADVERB OF MANNER 1 Medhavi Aggarwal answered this Its an adverb of degree as it's telling the degree of certainty according to me 1