Question
Inquiry
Doubt
Synonyms Doubt, argument, uncertainty, controversy, dubiety, dispute, debate, dubiousness, and reservation.
Undoubted
Synonyms Undoubted, without doubt, indubitable, irrefutable, incontrovertible, undeniable, clear, manifest, palpable, irrefutably, incontrovertibly, undeniably, certainly, unmistakably, patently, obviously, beyond doubt, certain, indisputable, incontestable, unquestionable, unmistakable, patent, obvious, indisputably, incontestably, unquestionably, undoubtedly, indubitably, clearly, manifestly, and palpably.
Interrogate
Synonyms Interrogate, put questions to, cross-question, probe, catechize, debrief, examine, grill, ask questions of, cross-examine, quiz, canvass, interview, sound out, give the third degree to, and pump.
Query
Example Sentences
She asked a challenging question.
A question can spark discussion.
His question revealed deep curiosity.
Everyone raised their hand, questioning.