1) 筈はずない Parts 筈 ない #51,097 Inflections of 筈ない Class I-adjective Stem Inflected ending ✕ Link copied! はずない [3] Meaning Shirabe Expression I-adjective Usually kana it cannot be that ...; it is highly unlikely that ...; it is impossible that ... See also: 筈がない (はずがない) 彼女かのじょがこんなに早はやく来くるはずない。 She cannot be here so early. Forms 筈ない#51,097筈はずないはずないはずない