| Word | Definitions | Synonyms |
|---|---|---|
| deadly | (adjective) exceedingly harmful | Synonyms: baneful, pernicious, pestilent |
| (adjective) extremely poisonous or injurious; producing venom | Synonyms: venomous, virulent | |
| (adjective) involving loss of divine grace or spiritual death | Synonyms: mortal | |
| (adjective) (of a disease) having a rapid course and violent effect | - | |
| (adjective) causing or capable of causing death | Synonyms: deathly, mortal | |
| (adjective) of an instrument of certain death | Synonyms: lethal |