adjective

reliable

Able to be trusted to work or behave as expected.

Our reliable babysitter always arrives on time and follows instructions.

Etymology

Rely developed from an older word for binding into dependence or trust. Reliable describes something on which that trust can safely be placed.

More examples

  • This old car is still reliable on long trips.
  • We need a reliable source for those figures.
  • The cabin has reliable internet access, even during storms.

Forms

reliable · more reliable · most reliable

reliability noun — The quality of consistently meeting expectations.

reliably adverb — In a way that consistently meets expectations.

Similar words

dependable
Nearly interchangeable; emphasizes being counted on when needed.
trustworthy
Emphasizes deserving trust, especially through honesty or accuracy.
consistent
Emphasizes steady behavior or results, not necessarily good performance.