1. in an extremely good or impressive way
Usage: informal
2. to an extreme degree; extremely
Usage: informal
3. in a way that resembles or relates to fables; mythically
Usage: literary

Examples

• She looked fabulously elegant in her evening gown.
• The restaurant was fabulously expensive but worth every penny.
• He performed fabulously well on the exam.
• The house was fabulously decorated for the holidays.
• She’s fabulously wealthy after selling her company.
• The dragon was fabulously large in the ancient tale.
• Everything went fabulously according to plan.