interrogative

/ˌɪntəˈrɑɡətɪv/
adjective
  1. Having the form or force of a question; used in asking questions.
    • The teacher used an interrogative tone to encourage students to think.
    • She raised an interrogative eyebrow when she heard the strange noise.
    • An interrogative sentence ends with a question mark.
  2. Relating to or denoting a word (such as who, what, which) used to ask a question.
    • In the sentence 'Where are you going?', 'where' is an interrogative adverb.
    • The student learned the difference between interrogative and declarative sentences.
    • 'Who' and 'what' are interrogative pronouns.
Antonyms
noun
  1. A word used to ask a question, such as who, what, which, why, or how.
    • An interrogative can be a pronoun, adverb, or determiner.
    • In grammar class, we studied interrogatives like 'when' and 'where'.
    • The child's first interrogatives were 'what' and 'why'.