un·rec·og·niz·able in BRIT, also use unrecognisable If someone or something is unrecognizable, they have become impossible to recognize or identify, for example because they have been greatly changed or damaged. The corpses of the prisoners were nearly unrecognizable from the number of bullet wounds they'd received The new town would have been unrecognisable to the original inhabitants. recognizable. someone or something that is unrecognizable has changed or been damaged so much that you do not recognize them