■ adjective
1》 extraordinary, especially extraordinarily large: his ~ wealth.
↘ informal very good.
2》 mythical; imaginary.
Derivatives
fabulosity noun
~ly adverb
~ness noun
Origin
ME (in the sense 'known through fable'): from Fr. fabuleux or L. fabulosus 'celebrated in fable', from fabula (see fable ).