reliable

adjective
B1
OPAL
1
B1
that can be trusted to do something well; that you can rely on
قابل‌اعتماد, مطمئن, اعتماد‌پذیر, قابل‌اتکا
synonym dependable
2
B1
that is likely to be correct or true
قابل اعتماد, قابل اطمینان, معتبر, مطمئن, قابل وثوق
reliable information/data
Our information comes from a reliable source.
Prosecution lawyers tried to show that she was not a reliable witness.
How reliable are the local weather forecasts?
These tests are a reliable indicator of future performance.
3
able to work or operate for long periods without breaking down or needing attention
اطمینان‌بخش, پایدار, مطمئن, قابل اطمینان
My car's not as reliable as it used to be.