persistent Adjective, persistent

1. persistent

Appox. usage (any sense): 1.64 per million words

perseverent Adjective, perseverent

1. persevering, persistent

Appox. usage (any sense): 1.03 per million words

răbdător Adjective, răbdător

1. patient
2. persistent, perseverant

Appox. usage (any sense): 5.28 per million words