It is called, logically enough, a predicate adjective. It follows a linking verb (be, seems, looks) and refers to the subject. It can also be referred to as a subject complement.
A verb is modified by an adverb or an adverbial phrase.
Adverb. It modifies the verb or the rest of the sentence, for example, "He looked at his wife contemptuously." Here "contemptuously" modifies (describes) how he "looked" at his wife.
Cavorted belongs to the part of speech called the verb.
What part of speech is thaw
The part of speech for oscillate is verb.
Adverb.
Cautiously is an adverb. It modifies a verb.
"Wildly" is an adverb . . . it modifies a verb (action word). "He was running around the yard wildly". 'Wildy' modifies the verb, 'running'.
The word vaguely is an adverb. As in, he answered vaguely. It modifies a verb.
The part of speech that modifies a verb, adjective, or other adverb, Any of the words belonging to this part of speech, such as so, very, and rapidly.
A verb is modified by an adverb or an adverbial phrase.
Limply is an adverb. It modifies a verb by describing how the action is done.
The word "adverb" is a noun. An adverb, a word that modifies a verb, adjective, or adverb, is its own part of speech.
Adverb. It modifies the verb or the rest of the sentence, for example, "He looked at his wife contemptuously." Here "contemptuously" modifies (describes) how he "looked" at his wife.
symbolically, An adverb is the part of speech that modifies a verb, adjective, or other adverb. In this case, "symbolically" modifies the how they protested and how they wore their clothes.
probably,An adverb is the part of speech that modifies a verb, adjective, or other adverb. In this case, "probably" modifies the act of running for office.
"Spitefully" is an adverb. It modifies a verb, adjective, or another adverb by indicating the manner in which an action is performed.