Portuguese_3.0 Catalan_3.0 German_3.0 English_3.0 Basque_3.0 French_3.0 Galician_3.0 Spanish_3.0
      hardheaded, mulish   têtu   testaduro
      flint, flinty, granitic, obdurate, stony   opiniâtre, têtu   empedernido, obstinado, terco
      refractory, stubborn   têtu   refractario
      cussed, obdurate, obstinate, unrepentant   obstiné, opiniâtre, têtu   obstinado, terco, tozudo
      unreformable, unregenerate   obstiné, têtu   depravado
teimoso obstinat, pertinaç, tossut dickköpfig, stur obstinate, stubborn, unregenerate   têtu obstinado, teimoso cabezota, obstinada, obstinado, pertinaz, reaccionaria, terco, testarudo, tozudo
tenaz inflexible, pertinaç, porfidiós, tenaç beharrlich, hartnäckig dogged, dour, persistent, pertinacious, tenacious, unyielding   obstiné, tenace, têtu obcecado, tenaz inflexible, pertinaz, porfiado, tenaz