かかる・罹るkakaru[2]nakadaka (mid-high)

1. godan verb, intransitive verbto contract (a disease); to suffer from
   私はかつて大病たいびょうにかかったことがあった。↗

   Once I had a very bad disease.

• Synonym罹患りかんWrittenWritten term for contracting a disease, as in 「罹患率」; used mainly in medical and statistical writing.
• Synonym患うわずらうWrittenWritten word for having or suffering from an illness, as in 「胸を患う」; it can also mean to worry or be troubled.
• Antonym治るなおるNeutralSaid of an illness getting better or being cured — the opposite of 「罹る」.
• Antonym回復するNeutralMeans regaining one's health, the opposite of 「罹る」; slightly formal.

Everyday speech says 「病気にかかる」; 「罹る」 is the kanji spelling. Use 「罹患」 in medical statistics and 「患う」 in written prose; the opposite is 「治る」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. （罹かかる）病気びょうきや災難さいなんに遭あう。