Also found in: Thesaurus, Legal, Encyclopedia.


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.
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
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.