subject or left to one's own discretion.
for any use or purpose one chooses; not earmarked for a particular purpose: discretionary income; a discretionary fund.
Origin of discretionary
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for discretionarily
Historical Examples of discretionarily
Whether that authority should be more or less than congress then discretionarily exercised was not the question.The Writings of Thomas Paine, Volume II
having or using the ability to decide at one's own discretiondiscretionary powers
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
Online Etymology Dictionary, © 2010 Douglas Harper