Definition of "irrepealable" [ir•re•peal•a•ble]

• Impossible to repeal: irrepealable laws. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Political economy, by showing that population outstrips the means of improvement, passes an irrepealable sentence of ignorance and degradation on the laborer."
• "Such was his meaning when he declared that the condition of the territories was fixed by an 'irrepealable law,' needing no irritating legislation to assure their freedom."
• "When before was it imagined by sensible men that a regulative or declarative statute, whether enacted ten or forty years ago, is irrepealable; that an act of Congress is above the Constitution?"