hardnekkig (Adjektiv)

1

anhaltend (a)

gedrag, pijn
2
gedrag, stubbornly persevering, steadfast, unwilling to yield from a point of view etc; dogged
3
gedrag, probleem, stubbornly persevering, steadfast, tenacious, unwilling to yield from a point of view etc; dogged, vlek
4

verbissen (a)

gedrag, stubbornly persevering, steadfast