“Serious illness” in Japanese
Short answer
Serious illness in Japanese is “大患” (taikan). Full meaning: serious illness, travails.
Other ways to say “Serious illness” in Japanese
重症
juushou serious illness
大病
taibyou serious illness, dangerous disease
重病
juubyou serious illness
重患
juukan serious illness
篤疾
tokushitsu serious illness, critical illness
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