The opposite of neatly is messily.
Another opposite is ineffectively.
Clumsily can also be an opposite of neatly.
Neatly, messily, ineffectively and clumsily are all adverbs.
Neatly is ADVERB. It answers the question "HOW".
Neatly is an adverb.
neatly
Yes, neatly is an adverb. It described something done in a neat or orderly fashion.
You didn't provide a sentence but the word neatly is always an adverb.
It is an adverb of manner
Neatly is an adverb. Neat is the adjective form.
neatly
The adverb of neat is neatly.An example sentence is: "he folds his socks neatly".
Adverb adds flavour to the verb of the sentence. For example: Vidhi writes neatly. In this sentence, the word 'neatly' describes the way how Vidhi writes. Adverb is therefore known to describe the verb in a sentence
opposite is an adjective
Not usually. It is an adjective, and only an adverb informally, when it takes the place of the adverb form neatly. Used with verbs such as serve or keep, it is technically still an adjective.