persistent in Bulgarian
persistent in Bulgarian
постоя́нен
Obstinately refusing to give up or let go.
упори́т
Obstinately refusing to give up or let go.
постоя́нен
Insistently repetitive.
неопадащ
(botany) Lasting past maturity without falling off.
непеходен
(mathematics, stochastic processes, of a state) non-transient.