unfailingness

Never letting down

Unfailingness is the quality of being consistently reliable or dependable—never falling short.

The word describes what doesn't waver or disappoint: the unfailingness of her support, the unfailingness of the sunrise.

It's formal and uncommon, typically appearing in literary or religious contexts where constancy is praised.

consistency

regularity

Consistent, predictable occurrence

predictability · invariability · evenness · steadiness · constancy · rhythm · pattern · routine · equilibrium · coherence

dependability

trustworthiness

Quality of being reliable

loyalty · dedication · commitment · support · assurance · certainty · security · solidity · backbone · pillar

perseverance

tenacity

Persistent grip or resolve

resilience · fortitude · grit · stamina · willpower · resolve · dedication · patience · tirelessness · doggedness

infallibility

perfection

Absence of any fault

faultlessness · certainty · absoluteness · irrefutability · incorruptibility · indisputability · immaculateness · exactness · sureness

Opposites
reliability/consistency

unfailingnessunreliability

Tendency to disappoint expectations

inconsistency · fickleness · unpredictability · erraticness · irregularity

persistence/endurance

unfailingnessfallibility

Liability to err

failure · faltering · weakness · fragility · impermanence

Family

fail, failure, failing, failed, fails, unfailing, infallible, failures, fallible

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