[uh b-struhk-shuh-nist]
  1. a person who deliberately delays or prevents progress.
  2. a person who delays or obstructs the business before a legislative body by parliamentary contrivances or legalistic maneuvers.

Origin of obstructionist

First recorded in 1840–50; obstruction + -ist
Related formsob·struc·tion·ism, nounob·struc·tion·is·tic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for obstructionist


    1. a person who deliberately obstructs business, esp in a legislature
    2. (as modifier)obstructionist tactics
Derived Formsobstructionism, 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

Word Origin and History for obstructionist

1846, from obstruction + -ist.

Online Etymology Dictionary, © 2010 Douglas Harper