disprover

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a debater who refutes or disproves by offering contrary evidence or argument
• Syn:
rebutter, refuter, confuter
• Derivationally related forms:
confute (for: confuter), refute (for: refuter), disprove, rebut (for: rebutter)
• Hypernyms:
debater, arguer