adjective
broken
A1
Means 'broken' (not functioning) as adjective; also colloquially 'exhausted' (ich bin kaputt). Not gradable. Antonyms: heil, ganz. Not a participle here. Used predicatively (das ist kaputt) more than attributively; common collocations: kaputte Maschine, kaputte Kleidung. Informal everyday word. Often in speaking and repair contexts.
Examples
Der Stuhl ist kaputt.
The chair is broken.
Die Maschine blieb kaputt, weil das Ersatzteil fehlte.
The machine remained broken because the spare part was missing.
Details
Mnemonics
a cracked cup with a big crack and a label 'kaputt'
sounds a bit like English 'caput' (head gone) — something not working