The word ungainly is an adjective. It means to be clumsy.
Not gainly; not expert or dexterous; clumsy; awkward; uncouth; as, an ungainly strut in walking., Unsuitable; unprofitable., In an ungainly manner.
anorexic people are ungainly in fat
Can she not see that my hair has flattened against head in ungainly manner?
the unbalanced man stumbled ungainly on the dance floor.
People stopped to stare at his energetic but ungainly movements on the dance floor.
No, ungainly is an adjective used to describe someone or something as lacking grace or awkward in movement or appearance. It is not an adverb.
clumsy, awkward, hard to handle
The part of speech for this particular word is a noun.
part of speech
The part of speech for "answer" is a noun.
what part of speech is beneath
adverb