The adverb forms are sadly and cautiously.
No, cautious is not an adverb. It is an adjective, with the adverb form "cautiously."
The adjective cautious has the adverb form cautiously. It means in a careful or cautious manner.
The adverb form is "cautiously."
No. Sad is an adjective. The adverb form is "sadly."
Yes, there is. The adjective sad has the adverb form "sadly."
cautious
sadly?
Yes, it is an adverb. It means in a sad, tearful manner.
No, it is not an adverb. Saddened is the past tense verb (and past participle) of the verb "to sadden" (make sad). The seldom used adverb form is saddeningly.
No. Unhappy is an adjective meaning sad. The adverb form would be unhappily.
As an adverb, "creep" means to move slowly and stealthily, typically in a cautious or furtive manner.
No, it is not an adverb, but an adjective (sad, sorrowful, unfortunate). The adverb form is tragically.