- 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.
expostulate definition by Webster's New World
Origin: ; from Classical Latin expostulatus, past participle of expostulare, to demand vehemently, require ; from ex-, intensive plush postulare: see postulate
expostulate definition by American Heritage Dictionary
intransitive verb ex·pos·tu·lat·ed, ex·pos·tu·lat·ing, ex·pos·tu·lates
Origin: Latin expostulāre, expostulāt- : ex-, intensive pref.; see ex- + postulāre, to demand; see prek- in Indo-European roots.
- ex·posˌtu·laˈtion noun
- ex·posˈtu·laˌtor noun
- ex·posˈtu·la·toˌry , ex·posˈtu·laˌtive adjective