Definition of "immutable" []

• Not subject or susceptible to change. (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.

• "Even space, seemingly immutable, is able to be truncated by circumstance."
• "But let us step back further: must stage-genres remain immutable, bounded wholes, or are they subject to transformation?"
• "Far from respecting certain immutable forms, each new book tends to constitute the laws of its functioning at the same time that it produces their destruction."