| Subject | English | Spanish |
| gen. | a rather unfriendly manner | un tono poco amigable |
| environ. | environmentally unfriendly firm | empresa ambientalmente hostil |
| environ. | environmentally unfriendly firm Firms that do not comply with environmental regulations for the disposal of noxious wastes generated during the production cycle | empresa ambientalmente hostil |
| gen. | the inhabitants looked unfriendly | los habitantes del pueblo parecían muy malencarados |
| econ. | unfriendly takeover bid | oferta pública de adquisición OPA hostil |