Synonyms of 'fatal'
1 disastrousDictionary, devastating, crippling
It dealt a fatal blow to his chances.
2 decisiveDictionary, final, determining
putting off that fatal moment
his decisive victory in the elections
The judge's decision is final.
Cost was not a determining factor in my choice.
The incident happened at a critical point in the campaign.
At the crucial moment, his nerve failed.
What changed for him in that fateful year?
3 lethalDictionary, deadly, mortal
She had suffered a fatal heart attack.
a lethal dose of sleeping pills
a deadly disease currently affecting dolphins
a mortal blow to terrorism
Diphtheria was a killing disease.
the awesome destructive power of nuclear weapons
a malignant minority indulging in crime and violence
He is suffering from an incurable skin disease.
the pernicious effects of alcoholism
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destructive, poisonous, or fatal
If you describe an event or situation as calamitous, you mean it is very unfortunate or serious.
a calamitous air crash
Thesaurus for fatal from the Collins English Thesaurus
A fatal action has very undesirable effects.