say it: di-FAHY-uhnt
defiant is an adjective meaning "boldly resisting authority or an opposing force". It carries one recorded sense.
boldly resisting authority or an opposing force
“brought up to be aggressive and defiant”
“a defiant attitude”
Definitions, synonyms and semantic relations for defiant 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.