Copyright © Philip M. Parker, INSEAD. Terms of Use.

| Language | Expression | English Translation or Definition |
| Dutch | aalwaardig | fretful, morose, sullen, peevish, simple, straightforward. |
| Netherlands | aalwaardig | morose, peevish, simple, sullen. |
Source: compiled by the editor from the definition of sullen; see credits. | ||
Copyright © Philip M. Parker, INSEAD. Terms of Use.