Dictionary.com
definitions

uninstall

or un·in·stal

[uhn-in-stawl]
verb (used with object)
  1. to remove (a software program) from a computer or computer system.
Related formsun·in·stall·er, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for uninstall

uninstall

verb (tr)
  1. computing to remove (a program)
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