constantness

Quality of unchanging

Constantness is the quality of remaining unchanged or unwavering.

The word is rarely used, as constancy covers the same ground more gracefully: Her constancy impressed him sounds natural where Her constantness impressed him sounds awkward.

Constantness appears occasionally in technical or philosophical contexts where the abstract quality of being constant needs emphasis.

immutability

unchangingness

State of remaining constant

stability · durability · timelessness · perpetuity · eternality · unalterability · changelessness · continuity · lastingness · steadiness

loyalty

faithfulness

Devoted loyalty maintained

dedication · commitment · steadfastness · fealty · trustworthiness · adherence · attachment · bond · troth · honor

persistence

perseverance

Sustained resolve despite obstacles

resilience · fortitude · grit · doggedness · diligence · assiduity · steadiness · continuity · relentlessness · staying power

reliability

dependability

Consistent trustworthy nature

stability · steadiness · accuracy · precision · assurance · certainty · solidity · robustness · soundness · credibility

Opposites
stability vs. change

constantnessvariability

Tendency to change

changeability · inconstancy · fluctuation · mutability · instability

reliability vs. unreliability

constantnessfickleness

Lack of steadfast devotion

inconstancy · capriciousness · unreliability · faithlessness · unfaithfulness

Family

constant, constantly, constancy, inconstant, constants, inconstancy

Familiarity
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Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G