Almost fully diminished
Here are ways you will see this notated as symbols:
Xm7b5 is most common most clear. It shows us how we get there. We use an Xm7 chord and lower 5. Usually the spelling of this chord is surprisingly standard, although variations do exist. The variations do not affect what we play or hear. In traditional theory the Xm7b5 chord is called a half diminished chord. The symbol ø is a frequently used written short cut.