1. tenacious
Seles is a tenacious opponent – she never gives in. | 2. There has been tenacious local opposition to the new airport.
My mother always said I was as tenacious as a ferret on crack.
2. obstinate
He can be very obstinate at times. obstinate weeds. Invading troops met with obstinate resistance by guerrilla forces.
3. unyielding
Korea is unyielding in its demands for a new treaty.
Korea is unyielding in its demands for a new treaty. PERSISTENT, stubborn, tenacious, intractable
Inglês americano palavra "nieustępliwy"(unyielding) ocorre em conjuntos:
raven's clan