hypersensitive adj. + Add to list US //ˌhaɪpɝˈsɛnsɪtɪv// UK //haɪpˈɜːsənsɪtˌɪv// hy·per·sen·si·tive SynonymsEtymology Synonyms allergichypersensitisedhypersensitizedsensitizedsupersensitisedsupersensitivesupersensitizedOrigin From hyper- + sensitive. Doublet of supersensitive.