No.
An adverb is used to describe a verb (a doing word) and ends in ly:
The girl quietly crept down stairs.
They are both adjectives, even though Sickly ends in ly:
It tasted sickly or The sickly food was disgusting.
The room was brown or The brown carpet was very stylish.
She looked sickly after spending days in bed with a fever.
Sickly Business was created in 2004.
The definition of the word sickly is "often ill; in poor health."
A list of the adverbs are She,me,he,him,had,her,it,do,don't,and we.
Yes, Ringo Starr was a vary sickly child.
The definition of the word sickly is "often ill; in poor health."
Still Sickly Business was created in 2005.
Some adverbs (adverbs of place) tell where. Other adverbs are" adverbs of time - tell when or how long adverbs of manner - tell how adverbs of degree - tell how much
Adverbs modify verbs, adjectives, and other adverbs.
Some schools of psychology do consider sickly a personality trait.
No adverbs can describe you. The word you is a pronoun, and adverbs modify verbs, adjectives, and other adverbs.
Adverbs modify verbs. Adverbs can also modify adjectives and other adverbs.