でかい Common word JLPT N1 Show inflections LinksSentence search for でかいSentence search for でっかいSentence search for デカいSentence search for デッカいEdit in JMdict I-adjective (keiyoushi)1. huge; big; gargantuanColloquialOther formsでっかい、デカい、デッカい Discussions Log in to talk about this word.