Rigorous and Untiring

Rigorous adjective - Given to exacting standards of discipline and self-restraint.

Untiring and rigorous are semantically related. In some cases you can use "Untiring" instead an adjective "Rigorous".

Nearby Words: rigorously, rigor, rigour, rigorism

Untiring adjective - Showing no signs of weariness even after long hard effort.

Rigorous and untiring are semantically related. Sometimes you can use "Rigorous" instead an adjective "Untiring".

Nearby Word: untiringly