An extremely massive blackhole. A
hyper-massive blackhole is larger than a supermassive blackhole and has the
mass of at least a trillion suns, (ie. hyper-supermassive blackhole. aka. stupendously
large blackhole).
'Two supermassive blackholes merged to create a blackhole so supermassive that it became a hyper-supermassive blackhole, (ie. hypermassive blackhole ), but
even that's nothing compared to a
super-hypermassive, (ie. mega-hyper-supermassive) blackhole and so on.'
(Please read my
definition of a supermassive blackhole for more information).