un ‧ rec ‧ og ‧ niz ‧ a ‧ ble BrE AmE ( also unrecognisable British English ) /ʌnˈrekəɡnaɪzəb ə l, -ˈrekə-/ adjective
[ Word Family: verb : ↑ recognize ; noun : ↑ recognition ; adverb : ↑ recognizably ; adjective : ↑ recognizable ≠ ↑ unrecognizable ]
someone or something that is unrecognizable has changed or been damaged so much that you do not recognize them:
I hadn’t been to the city for 20 years and it was almost unrecognizable.