neuništiv

1. indestructible
   Moj stari telefon je bukvalno neuništiv. — My old phone is literally indestructible.
2. (of feelings, spirit) indomitable; undying
   Njen optimizam je neuništiv. — Her optimism is indomitable.
   Imaju neuništivu veru u pobedu. — They have an undying belief in victory.