dependable

adjective
UK /dɪˈpendəbl/
US /dɪˈpendəbl/

Someone who is dependable can be trusted to do what they say.

My dependable friend always helps me with my homework.


OTHER MEANINGS

2. Able to be counted on to work well without breaking.

This dependable old car has never let us down.

3. Consistently good in quality or performance.

She is a dependable worker who finishes every task on time.

4. Safe and sure to produce the expected result.

We need a dependable method for measuring the temperature.