This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Causing or capable of causing death.

adj. Causing ruin or destruction; disastrous: "Such doctrines, if true, would be absolutely fatal to my theory” ( Charles Darwin).

adj. Of decisive importance; fateful: came through at the fatal moment.

adj. Concerning or determining one's fate: the fatal thread of life.

adj. Obsolete Having been destined; fated.

adj. Proceeding from, or appointed by, fate or destiny.

adj. Foreboding death or great disaster.

adj. Causing death or destruction

adj. Causing a sudden end to a program.

n. A fatality; an event that leads to death.

n. A fatal error; a failure that causes a program to terminate.

adj. Proceeding from, or appointed by, fate or destiny; necessary; inevitable.

adj. Foreboding death or great disaster.

adj. Causing death or destruction; deadly; mortal; destructive; calamitous

1. Proceeding from or decreed by fate or destiny; inevitable; fated.

Fraught with fate; influencing or deciding fate; fateful.

Foreboding or associated with disaster or death; ominous.

Causing or attended with death or destruction; deadly; mortal; destructive; disastrous; ruinous: as, a fatal accident.

Doomed; cursed.

adj. controlled or decreed by fate; predetermined

adj. bringing death

adj. having momentous consequences; of decisive importance

adj. (of events) having extremely unfortunate or dire consequences; bringing ruin

"This is what I call a fatal flaw for this candidate."

inevitable    mortal    terminal    deathly    lethal    deadly    decisive    unfortunate   

fatalistic    fatality    fatalism   

necessary    inevitable    deadly    mortal    destructive    calamitous    fateful   

Natal    natal    neonatal    nonfatal    postnatal    prenatal   

terrible    serious    disastrous    bloody    frequent