lethal
https://gyazo.com/bdb06fc6cfced2139fe6c3631271db2c
source: Pass Eliminator GIF - Find & Share on GIPHY
adjective
sufficient to cause death:
«…にとって» 死を引き起こす, 死に至る, 致命的な «to» .
e.g. a lethal cocktail of alcohol and pills.
harmful or destructive:
死ぬほど強烈な, 恐ろしい.
e.g. the Krakatoa eruption was the most lethal on record.
ORIGIN
late 16th century (in the sense ‘causing spiritual death’): from Latin lethalis, from lethum, a variant (influenced by Greek lēthē ‘forgetfulness’), of letum ‘death’.