When something is unrecognizable, it is so different from the way that it used to be that you can't really identify it.
The house had been burned down, and all of the furniture was unrecognizable.
The painting was so unrecognizable that the gallery owner refused to sell it.
adjective
defying recognition as e.g. because of damage or alteration
Synonyms:
1
The current one is gritty and unrecognizable.
2
Devito is virtually unrecognizable in the shot.
3
Or because it's extremely boring and unrecognizable.
4
That mouth brand is totally unrecognizable.
5
And as of the victims, they get disfigured and unrecognizable.
6
The former airfield is virtually unrecognizable.
7
The bridge and after tanks are unrecognizable.
8
Today, the area is unrecognizable as an airfield.
9
Many were unrecognizable and never identified.
10
Actually, some of the sounds are completely unrecognizable.