say it: LAV-ish-lee
lavishly is an adverb meaning "in a wasteful manner". It carries 2 recorded senses.
in a wasteful manner
“the United States, up to the 1920s, used fuel lavishly, mainly because it was so cheap”
Definitions, synonyms and semantic relations for lavishly 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.