unpremeditatelyadv.
/ˌʌnprᵻˈmɛdᵻtətli/, U.S. /ˌənprəˈmɛdəˌteɪtli/, /ˌənpriˈmɛdəˌteɪtli/, /ˌənprəˈmɛdədətli/ Now rare.
= unpremeditatedly adv.
ΘΚΠ
the mind > will > intention > unintentional or unplanned character > [adverb] > in unplanned manner
suddenly1340
of unwarninga1400
on, upon, rarely of, in (a) suddenty1469
casuallya1549
extemporea1556
of (upon) this sudden1572
extemporally1577
at (the or a) volley1578
on (or o') the volley1578
extrumpery1582
unpremeditately1607
extemporary1610
extempory1623
extemporarily1667
impromptu1669
ad aperturam libri1679
unpremeditatedly1694
impulsively1768
extemporaneously1791
promiscuously1791
spontaneously1799
on (also upon) the spur of the moment (or occasion, etc.)1801
spontaneous1810
promiscuous1826
improvisedly1851
off-handedly1876
at the first jet1878
off the cuff1927
off the top of one's head1939
off the wall1966
1607 tr. P. Sarpi Apology sig. N Some Bishops..hauing their opinion vnpremeditately demaunded.
1739 D. Hume Treat. Human Nature II. iii. 242 Men are less blam'd for such evil actions, as they perform hastily and unpremeditately.
1848 Morning Post 13 Oct. If that attack happened unpremeditately, it did not amount to the crime of treason.
1920 M. H. Bradley Fortieth Door xii. 149 ‘Oh, take me away from him!’ she breathed suddenly, unpremeditately.
This entry has been updated (OED Third Edition, December 2014; most recently modified version published online December 2021).
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adv.1607