reliable

Won't let down

Someone or something that is reliable can be depended on: This car is the most reliable one I’ve ever had. Josh is not a reliable source of information because he wasn’t there.

If something proves reliable or proves to be reliable, it is successful in a previously unknown way: The system received 50% more use than was predicted and still proved to be completely reliable.

dependable

trustworthy

Worthy of confidence

unfailing · steady · solid · true · loyal · devoted · responsible · punctual · dedicated · unwavering

credible

believable

Able to convince

factual · accurate · substantiated · legitimate · sound · valid · plausible · truthful · honest · genuine

consistent

consistent

Not varying or contradicting

predictable · constant · stable · unchanging · even · systematic · methodical · repeatable · reproducible · precise

durable

sturdy

Solidly built, durable

tough · solid · rugged · strong · hard-wearing · long-lasting · heavy-duty · reinforced · well-made · quality

trustworthy

honest

Free from deception

upright · ethical · principled · forthright · truthful · genuine · straight · transparent · aboveboard · incorruptible

assurance

guarantee

Formal promise of fulfillment

promise · certification · validation · verification · confirmation · backing · endorsement · bond · insurance · safeguard

Categories
Opposites
dependability

reliableunreliable

Not consistently performing

undependable · inconsistent · flaky · unpredictable · erratic

trustworthiness

reliableuntrustworthy

Not deserving of confidence

treacherous · dishonest · faithless · disloyal · deceitful

soundness/validity

reliableunreliable

Not consistently performing

dubious · questionable · doubtful · unsound · unstable

Phrases
Family

unreliable, reliability, reliably, unreliability, unreliably, reliabilities, reliables

Familiarity
Top 3,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Positive · Everyday, not technical · Rated G