- not possible; unable to be, exist, happen, etc.
- unable to be done, performed, effected, etc.: an impossible assignment.
- incapable of being true, as a rumor.
- not to be done, endured, etc., with any degree of reason or propriety: an impossible situation.
- utterly impracticable: an impossible plan.
- hopelessly unsuitable, difficult, or objectionable.
Origin of impossible
SynonymsSee more synonyms for on Thesaurus.com
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for impossible
Which is impossible unless people talk publicly rather than letting each crime be its own isolated incident.Cover-Ups and Concern Trolls: Actually, It's About Ethics in Suicide Journalism
January 3, 2015
But an ad-supported version of Desert Golfing was impossible.Lost For Thousands of Strokes: 'Desert Golfing' Is 'Angry Birds' as Modern Art
January 2, 2015
It is impossible to calculate the full effect that watching this on television, listening on the radio must have had on Sam.How Martin Luther King Jr. Influenced Sam Cooke’s ‘A Change Is Gonna Come’
December 28, 2014
Memorable songs that are impossible to get out of your head?The Top 10 Nontraditional Christmas TV Episodes
December 25, 2014
It simultaneously reveals the absurdity of dictatorship and gives comfort to those languishing under an impossible reality.The Sony Hack and America’s Craven Capitulation To Terror
December 19, 2014
The laws of the country made it impossible to accompany her beloved husband.Philothea
Lydia Maria Child
Tilly was to have gone also at that time, but had found it impossible to get away.
Not that in his presence she became vain or petty or jealous; that would have been impossible.Malbone
Thomas Wentworth Higginson
Many others are so defaced that it is impossible to decipher them.
If I had seen it in the pattern I should have said it was impossible for your colouring.Viviette
William J. Locke
- incapable of being done, undertaken, or experienced
- incapable of occurring or happening
- absurd or inconceivable; unreasonableit's impossible to think of him as a bishop
- informal intolerable; outrageousthose children are impossible
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 impossible
Online Etymology Dictionary, © 2010 Douglas Harper