niggling (a) (work) | da certosino (a) (work) |
niggling (a) (doubt) | persistente (a) (doubt) |
niggling (a) (doubt) | assillante (a) (doubt) |
niggling (a) (doubt) | angoscioso (a) (doubt) |
niggling (a) (work) | tedioso (a) (work) |
niggling (a) (doubt) | tormentoso (a) (doubt) |