cavernous
adjective
uk/ˈkæv.ən.əs/us/ˈkæv.ɚn.əs/If something is cavernous, there is a verylargeopenspaceinside it:
似洞穴般的;(内部)大而深的,宽广的a cavernous 4,000-seattheatre有4000个座位的宽敞的剧院。
Enormous
- almighty
 - astronomical
 - astronomically
 - behemoth
 - bumper
 - by far and awayidiom
 - colossal
 - immeasurably
 - immense
 - immensity
 - inordinate
 - inordinately
 - mountainous
 - precipitous
 - prodigiously
 - stratospheric
 - super-colossal
 - supersized
 - terrific
 - thumping