Shirabe
筈ない

筈はず

Common auxiliary
English jmdict
1
auxiliary word usually written using kana alone should (be);bound (to be);expected (to be);must (be)
その飛行機は今ごろは関西空港に当然着いているはずだ。
The plane should have arrived at Kansai Airport by now.
2
noun (common) (futsuumeishi) nock (of a bow)
3
noun (common) (futsuumeishi) nock (of an arrow)
4
noun (common) (futsuumeishi) sumo nock-shaped grip (between thumb and forefinger)
See also: はず押し (はずおし)
5
noun (common) (futsuumeishi) wooden frame on the tip of the mast of a Japanese ship that prevents the hawser from falling out
Other forms 弭 【はず】 (rarely used kanji form)

筈ないはずない

Expression adjective (keiyoushi)
English jmdict
1
expressions (phrases word usually written using kana alone it cannot be that ...;it is highly unlikely that ...;it is impossible that ...
See also: 筈がない (はずがない)
彼女がこんなに早く来るはずない。
She cannot be here so early.
Other forms はず無い 【はずない】 (search-only kanji form) · 筈無い 【はずない】 (search-only kanji form)