say it: ruh-DI-kyuh-luh-slee
ridiculously is an adverb meaning "so as to arouse or deserve laughter". It carries one recorded sense.
so as to arouse or deserve laughter
“her income was laughably small, but she managed to live well”
Definitions, synonyms and semantic relations for ridiculously come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.