1) でかい #1,896 Inflections of でかい Class I-adjective Stem Inflected ending ✕ Link copied! Common でかい [2] Meaning Shirabe I-adjective Colloquial huge; big; enormous こんなデカイのがチャリの荷台にだいに乗のるわけないだろ。 There's no way one that big is going to go on a bike's luggage rest. Forms でかい#1,896でかいでっかい#4,187でっかい