Need another word that means the same as “lethal”? Find 18 synonyms and 30 related words for “lethal” in this overview.
The synonyms of “Lethal” are: deadly, fatal, mortal, life-threatening, murderous, homicidal, killing, terminal, final, incurable, well aimed, precise, unerring, sure, true, careful, meticulous, painstaking
According to the Oxford Dictionary of English, “lethal” as an adjective can have the following definitions:
| careful | Prudent in the use of something, especially money. Be careful to keep her shoes clean. |
| deadly | Filled with hatred or intense rivalry. The seven deadly sins. |
| fatal | Having momentous consequences; of decisive importance- Saturday Rev. The fatal day of the election finally arrived. |
| final | Coming at the end of a series. The judge s decision is final. |
| homicidal | Capable of or tending towards murder; murderous. He had homicidal tendencies. |
| incurable | Unalterable in disposition or habits. Incurable diseases. |
| killing | Exhausting or unbearable. A killing joke. |
| life-threatening | Causing fear or anxiety by threatening great harm. |
| meticulous | Showing great attention to detail; very careful and precise. A meticulous craftsman. |
| mortal | Subject to death. A mortal disease. |
| murderous | Capable of or intending to murder; dangerously violent. Murderous thugs. |
| painstaking | Done with or employing great care and thoroughness. He is a gentle painstaking man. |
| precise | (of a person) exact, accurate, and careful about details. Specified a precise amount. |
| sure | Having or feeling no doubt or uncertainty confident and assured. Be sure to lock the doors. |
| terminal | Of a condition forming the last stage of a terminal disease. Terminal cancer. |
| true | Of a compass bearing measured relative to true north. A true story. |
| unerring | Not liable to error. An unerring sense of direction. |
| well aimed | In good health especially after having suffered illness or injury. |
| blindness | Lack of perception, awareness, or judgement; ignorance. The field of vision gradually narrows and blindness can result. |
| calamitous | (of events) having extremely unfortunate or dire consequences; bringing ruin. Such calamitous events as fires hurricanes and floods. |
| cataract | A sudden rush of water; a downpour. She had cataracts in both eyes. |
| catastrophic | Involving a sudden and large-scale alteration in state. A catastrophic depression. |
| crushing | Forceful prevention; putting down by power or authority. Bone crushing. |
| damage | Suffer or be susceptible to damage. Bombing caused extensive damage to the town. |
| deadly | Of an instrument of certain death. A deadly serious remark. |
| destructive | Causing destruction or much damage. Destructive criticism. |
| detrimental | (sometimes followed by `to’) causing harm or injury. Moving her could have a detrimental effect on her health. |
| devastating | Physically or spiritually devastating often used in combination. A devastating cyclone. |
| die | A cutting tool that is fitted into a diestock and used for cutting male external screw threads on screws or bolts or pipes or rods. Their anger died. |
| disable | (of an action or circumstance) prevent or discourage (someone) from doing something. The raiders tried to disable the alarm system. |
| disastrous | Causing great damage. United made a disastrous start to the season. |
| disservice | An act intended to help that turns out badly. You have done a disservice to the African people by ignoring this fact. |
| dose | Administer a dose to a person or animal. He dosed himself with vitamins. |
| fatal | Controlled or decreed by fate; predetermined. A fatal series of events. |
| handicap | A race or contest in which a handicap is imposed. Lack of funding has handicapped the development of research. |
| harm | Cause or do harm to. The villains didn t harm him. |
| harmful | Causing or capable of causing harm. Harmful effects of smoking. |
| impairment | The condition of being unable to perform as a consequence of physical or mental unfitness. Hearing impairment. |
| incapacitate | Injure permanently. He was incapacitated by a heart attack. |
| incurable | A person whose disease is incurable. Incurable diseases. |
| injurious | Harmful to living things. Food which is injurious to health. |
| irreparably | In an irreparable manner or to an irreparable degree. His eye had been damaged irreparably. |
| mortal | Subject to death. Mortal combat. |
| poison | Administer poison to a person or animal either deliberately or accidentally. Hunters would use the sap of monkshood to poison their spears. |
| poisoning | The action of administering poison to a person or animal. Symptoms of poisoning may include nausea diarrhoea and vomiting. |
| ruinous | In ruins; dilapidated. The cost of their ransom might be ruinous. |
| stifling | Making one feel constrained or oppressed. Stifling heat. |
| virulent | Infectious; having the ability to cause disease. The poison is so virulent that it kills a fish instantly. |
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