The word inconspicuously is an adverb.
You can easily spot adverbs as the majority of them end in the suffix -ly.
He tried to inconspicuously enter the building that he had been banned from.
The girls passed the notes inconspicuously so the teacher wouldn't notice.
The part of speech for this particular word is a noun.
part of speech
furtively, inconspicuously, nervously, quietly
The part of speech for "answer" is a noun.
adverb
what part of speech is beneath
The part of speech for "unfamiliar" is an adjective.
The part of speech of "came" is a verb.
The part of speech for "twirl" is a verb.
The part of speech for "explicit" is an adjective.