“Butterfield's usually supportive biographer, Michael Bentley, finds it hard to exculpate Butterfield from that preposterous decision to parachute Williams into a chair.”
“Suddenly he launches into a preposterous tale of himself and his fellows, flung ashore, separated from their officers, horribly afraid of the devil-haunted beach of noises, with their heads full of the fumes of broacht liquor.”
“Many would laugh at Giorgio's preposterous theory that ancient aliens built the great pyramids.”
preposterated
simple past tense and past participle of preposterate
