|1.||[ adjective ] extremely pleasing|
"a fabulous vacation"
|2.||[ adjective ] based on or told of in traditional stories; lacking factual basis or historical validity|
|Synonyms:||mythological mythical mythologic mythic|
"mythical centaurs" "the fabulous unicorn"
|3.||[ adjective ] barely credible|
"the fabulous endurance of a marathon runner"