elenctic
Serving to refute, refutative, especially as part of a systematic interrogation; pertaining to rhetorical elenchus or cross-examination.
‘What lady?’ he asked in the elenctic tones of Lewis Carroll's caterpillar.
Where it comes from
From Ancient Greek ἐλενκτικός (elenktikós, “refutative”).
Adapted from the Wiktionary entry elenctic (CC BY-SA 4.0).