Persistent and Rigorous

Persistent adjective - Continuing despite difficulties, opposition, or discouragement.

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

Nearby Words: persistence, persisting, persistently, persistency

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

Persistent and rigorous are semantically related. Sometimes you can use "Persistent" instead an adjective "Rigorous".

Nearby Words: rigorously, rigor, rigour, rigorism