giddyBrE/ˈɡɪdi/NAmE/ˈɡɪdi/adjective (gid·dier, gid·di·est) [not usually before noun]feelingthateverythingismovingandthatyouaregoingtofall头晕；眩晕SYNdizzy◆WhenIlookeddownfromthetopfloor, Ifeltgiddy. 我从顶楼朝下看时感到头晕目眩。[not usually before noun]~ (withsth)sohappyandexcitedthatyoucannotbehavenormally（高兴或激动得）发狂，举止反常◆Shewasgiddywithhappiness. 她高兴得忘乎所以。[usually before noun]makingyoufeelasifyouareabouttofall令人眩晕的；使人头昏眼花的◆Thekidswerepushingtheroundaboutatagiddyspeed. 孩子们推动着旋转平台快得令人眩晕。◆(figurative) thegiddyheightsofsuccess令人目眩的巨大成功(old-fashioned) (ofpeople人) notserious轻率的；轻浮的；不稳重的SYNsilly◆Isabel'sgiddyyoungsister伊莎贝尔轻浮的小妹▸gid·di·lyBrE/ˈɡɪdɪli/NAmE/ˈɡɪdɪli/adverb◆Sheswayedgiddilyacrossthedancefloor. 她飞快地飘过舞池，看得人眼晕。▸gid·di·nessBrE/ˈɡɪdinəs/NAmE/ˈɡɪdinəs/noun[U]◆Symptomsincludenauseaandgiddiness. 症状有恶心和头晕。