Synonyms to simple variable

steady state, aplomb, balance, balanced personality, ceaselessness, complex variable, consecutiveness, constancy, constant flow, continualness, continuity, continuousness, cool, endlessness, equilibrium, fastness, featurelessness, firmness, fullness, gaplessness, homeostasis, imperturbability, incessancy, invariability, jointlessness, manipulated variable, monotony, nerve, plenitude, process variable, reliability, rootedness, sang-froid, seamlessness, secureness, security, smoothness, solidity, soundness, stability, stable equilibrium, stable state, steadfastness, steadiness, steady nerves, substantiality, successiveness, transient state, unbrokenness, undeflectability, undifferentiation, uniformity, unintermittedness, uninterruptedness, uninterruption, unrelievedness, unshakable nerves, unshakableness, variable