Third-person singular simple present indicative form of expostulate.(verb)
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Use "expostulates" in a sentence
"He's well played by Jude Law in Guy Ritchie's second Holmes movie as a sensible, intelligent, reliable chap, even if he too readily explodes or expostulates when confronted by his flatmate's outrageous behaviour."
"Anything made outside the isle of Guernsey is, well, quite obviously not the genuine article; "some," expostulates Eldridge, "are not even made entirely of wool.""
"The arguments about it will rage on and on (Simon Heffer expostulates loudly here) but I should like to pose some questions?"