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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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.invariability - a quality of uniformity and lack of variation
regularity - the quality of being characterized by a fixed principle or rate; "he was famous for the regularity of his habits"
smoothness - the quality of having a level and even surface; "the water was a glassy smoothness"; "the weather system of the Pacific is determined by the uninterrupted smoothness of the ocean"
unevenness, variability - the quality of being uneven and lacking uniformity
2.invariability - 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 classic literature ?
So assured, indeed, is the fact concerning the periodicalness of the sperm whale's resorting to given waters, that many hunters believe that, could he be closely observed and studied throughout the world; were the logs for one voyage of the entire whale fleet carefully collated, then the migrations of the sperm whale would be found to correspond in invariability to those of the herring-shoals or the flights of swallows.
Clear and transparent rules for doing business, guaranteeing the invariability of the decisions and norms adopted, "Alexei Dumin stressed.
Furthermore, Jagannathan and Wang (1996) and Heinen and Valdesogo (2008), among others, criticize the invariability assumed in the betas through the years in some studies.
The invariability in the artefact and faunal assemblages indicates a seasonal, most probably a late winter / early spring camp site of seal hunters.
This is of much importance since invariability in residue pattern has been observed for vNDVs in a given geographical location (Samuel et al.
Designing strong and efficient state role mechanisms for promoting industrial relations harmony and efficient social protection programs is a necessary paradigm for eliminating labor market invariability, income and wage disparities in the economy.
Bots similarly profit from uniform templates of ethos construction because such invariability frees them from the challenge of creating novel forms of self-expression.
Conscientiousness was due to the integration of emotional and regulatory invariability and lower mental arousal (22).
This leads us onto a further dimension of the concept of sameness and invariability, and which connects even more deeply the music with the landscape, then the landscape to the people, and from there returning from the people to the music.
The invariability of [delta]WT suggests that the water table maintained a constant down-gradient slope.
Apart from guarantees specified by the national legislation of Belarus and bilateral international agreements, there is a special economic zone in Belarus - industrial Park "Great stone" - which grants investors with supplementary guarantee of invariability of preference treatment even if new taxes and fees are established in the country.
The invariability of Planck constant is a consequence of the fact that, although individually Planck energy and Planck time change in time, their product remains constant: