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Not changing or subject to change; constant.

in·var′i·a·bil′i·ty, in·var′i·a·ble·ness n.
in·var′i·a·bly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.invariableness - the quality of being resistant to variation
unchangeability, unchangeableness, unchangingness, changelessness - the quality of being unchangeable; having a marked tendency to remain unchanged
unvariedness - characterized by an absence of variation
variability, variableness, variance - the quality of being subject to variation
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
As can be seen from Figure 3: when SNR is less than 10dB, CMFFF still has some classification abilities, but the average CCR of CMFFF (around 50%) is lower, and after this, CCR rises quickly along with the increase of SNR; when SNR rises to 30 dB, CCR leaves behind 80% and continues to rise relaxedly with the increase of SNR; when SNR reaches 65 dB, CCR exceeds 95% and tends towards invariableness hereafter.