- not reversible; incapable of being changed: His refusal is irreversible.
Origin of irreversible
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for irreversibility
This irreversibility is due to the work required to evolve bubbles of gas at the surface of bright platinum plates.
- not able to be reversedthe irreversible flow of time
- not able to be revoked or repealed; irrevocable
- chem physics capable of changing or producing a change in one direction onlyan irreversible reaction
- thermodynamics (of a change, process, etc) occurring through a number of intermediate states that are not all in thermodynamic equilibrium
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 irreversibility
Online Etymology Dictionary, © 2010 Douglas Harper