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Supposedly vs. Supposably


[per-swey-siv, -ziv] /pərˈsweɪ sɪv, -zɪv/
able, fitted, or intended to persuade:
a very persuasive argument.
something that persuades; inducement.
Origin of persuasive
1580-90; Medieval Latin persuāsīvus. See persuasible, -ive
Related forms
persuasively, adverb
persuasiveness, noun
nonpersuasive, adjective
nonpersuasively, adverb
nonpersuasiveness, noun
prepersuasive, adjective
unpersuasive, adjective
unpersuasively, adverb
unpersuasiveness, noun
1. convincing, compelling, forceful. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for persuasively
Contemporary Examples
Historical Examples
  • She smiled, and said persuasively: "But you've never inquired after me."

    Hilda Lessways Arnold Bennett
  • "You know—Sid—he could swim perfectly," she said persuasively.

    The Slave Of The Lamp Henry Seton Merriman
  • Gently and persuasively she drew the trembling girl forward; the others all pressed behind her.

    Fernley House Laura E. Richards
  • "I had my reasons for the deceit, Lola," said he, persuasively.

    The Daltons, Volume II (of II) Charles James Lever
  • "I think you would like Burke and Hare, sir," he said persuasively to Wilton.

    The Twelfth Hour Ada Leverson
British Dictionary definitions for persuasively


having the power or ability to persuade; tending to persuade: a persuasive salesman
Derived Forms
persuasively, adverb
persuasiveness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for persuasively



1580s, from Middle French persuasif, from Medieval Latin persuasivus, from Latin persuas-, past participle stem of persuadere "persuade, convince" (see persuasion). Related: Persuasively; persuasiveness. Replaced earlier persuasible in this sense (see persuadable).

Online Etymology Dictionary, © 2010 Douglas Harper
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