unpostponableadj.
/(ˌ)ʌnpəˈspəʊnəbl/, /(ˌ)ʌnˌpəʊs(t)ˈpəʊnəbl/, U.S. /ˌənˌpoʊs(t)ˈpoʊnəb(ə)l/, /ˌənpəˈspoʊnəb(ə)l/ That cannot be postponed.
ΘΚΠ
the mind > attention and judgement > importance > [adjective] > other
of (good) warrantc1330
last1558
overweighted1753
unpostponable1800
sacred1867
mugwump1886
codominant1943
1800 True Briton 8 May It proceeded solely from the great pressure of important and unpostponable public business.
1854 J. Wilson Let. 30 Jan. in Mem. (1859) 304 Whatever was not altogether imperative and unpostponable.
1921 E. L. Keller W. Whitman in Mickle Street iii. 22 The pondering over repairs, and deciding which were absolutely essential and unpostponable.
2004 Vanity Fair Mar. 202/2 He went to Jerusalem to die, and for no other reason but to keep that unpostponable appointment.
This entry has been updated (OED Third Edition, December 2014; most recently modified version published online December 2021).
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adj.1800