interrogative
in-ter-rog-a-tive
adjective
Pertaining to or expressing a question; used for asking.
"An interrogative pronoun asks a question."
noun
A word or form used to ask a question.
"Which word functions as an interrogative here?"
Thesaurus
Synonyms: interrogatory, interrogative mood, interrogation, interrogative sentence, question
Antonyms: asserting(a), declarative, declaratory