Unlikely, though it ends in -LY, is an adjective, not an adverb.
(*while "likely" can be either an adjective or adverb, e.g. He will likely join us, the use of "unlikely" as an adverb requires constructions that are virtually never seen in modern English)
An adverb describes a verb, an adjective or another adverb.
The word small can be an adjective or an adverb.
Constantly is an adverb. Constant is an adjective.
Approximate is an adjective, approximately is an adverb.
The word very is an adverb.
It has both.The word unlikely is an adjective and the word very is an adverb modifying unlikely.
Unlikely can be used as an adjective and an adverb.
No. Stretched is a verb form or adjective, not an adverb.
Dark can be an adjective or a noun. Darkly is an adverb.
Adverb.Here is an adverb, not an adjective.
its an adverb an adjective is a descriptive word an adverb is a feeling
An adverb describes a verb, an adjective or another adverb.
It can be an adjective OR an adverb. adjective -- You dog is a friendly dog adverb -- She always talks friendly to me
Nervous is an adjective. The adverb form is nervously.
Yes, "especially" can function as both an adverb and an adjective. As an adverb, it modifies a verb, an adjective, another adverb, or a sentence. As an adjective, it describes a noun.
'The' is neither an adjective nor an adverb. It is an article.
No, it is not. It is an adverb, the adverb form of the adjective unsteady.