Suggestive of death:
(Computing) Causing a sudden end to the running of a program.
Causing or capable of causing harm; injurious.
Of a performance or speech, in person.
(Medicine) Tending to metastasize:
The definition of dangerous is something that is potentially harmful, damaging or likely to cause an accident or injury.
Poisonous or poisoned
Not intended to harm or offend; inoffensive.
Free from danger or injury; undamaged or unhurt:
Providing assistance; useful.
The definition of deathly is something that is related to or likely to cause death.
Containing life; living.
Find another word for lethal. In this page you can discover 20 synonyms, antonyms, idiomatic expressions, and related words for lethal, like: deadly, fatal, mortal, harmful, live, malignant, poisonous, dangerous, poison, harmless and safe.