adverbial

adj. relating to or having the function of an adverb (Grammar)

In grammar an adverbial is a word (an adverb) or a group of words (an adverbial phrase or an adverbial clause) which modifies or tells us something about the sentence or the verb. The word adverbial is also used as an adjective, meaning 'having the same function as an adverb'. Look at the examples below:Danny speaks fluently. (telling us more about the verb)
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Noun
1. a word or group of words function as an adverb
(hypernym) adverb
Adjective
1. of or relating to or functioning as an adverb; "adverbial syntax"
(pertainym) adverb

adj. adverbial, relating to or having the function of an adverb (Grammar)

adv. adverbially, in an adverbial manner, in a way which modifies a verb (Grammar)

adj. adverbial, relating to or having the function of an adverb (Grammar)