big
large
colossal
enormous
giant
gigantic
huge
humongous
humungous
immense
inordinate
prodigious
Herculean
alfresco
cannibalistic
celebratory
cyclopean
death-defying
flat-topped
hefty
interplanetary
knobby
mammoth
man-sized
manageable
monumental
moss-covered
sit-down
sizable
spindly
titanic
toothy
voracious