- Expostulate is defined as to try to reason with someone while showing a lot of disagreement.
An example of expostulate is to try to prove the existence of God to an atheist.
intransitive verbexpostulated, expostulating
Origin of expostulate; from Classical Latin expostulatus, past participle of expostulare, to demand vehemently, require ; from ex-, intensive + postulare: see postulate
verbex·pos·tu·lat·ed, ex·pos·tu·lat·ing, ex·pos·tu·lates
Origin of expostulateLatin expostulāre, expostulāt- : ex-, intensive pref.; see ex– + postulāre, to demand; see prek- in Indo-European roots.
- ex·pos′tu·la·to′ry , ex·pos′tu·la′tive
(third-person singular simple present expostulates, present participle expostulating, simple past and past participle expostulated)