noun, noun or participle which takes 'suru', intransitive verb
rapid weight loss; extreme thinning
Colloquial term for losing a lot of weight quickly, often through dieting or illness. Can be used as a noun or with する to describe the process.
激やせダイエットに挑戦したが、リバウンドが怖い。
I tried a rapid weight loss diet, but I'm afraid of rebounding.
病
I ended up losing a lot of weight due to illness.