overconfidentadj.
/ˌəʊvəˈkɒnfᵻd(ə)nt/, U.S. /ˌoʊvərˈkɑnfəd(ə)nt/ Excessively confident; more confident than is warranted.
ΘΚΠ
the mind > emotion > courage > confidence > [adjective] > over-confident or presumptuous
thristec897
Icarian1595
overconfidenta1617
prefident1689
secure1859
brussen1897
a1617 S. Hieron Penance for Sinne in Wks. (1620) II. 321 Not being aware of the euill of that ouer-confident humour which was in him.
a1676 M. Hale Primitive Originat. Mankind (1677) iii. i. 250 Aristotle himself seems not to be over-confident of this Opinion.
1757 P. Bacon Insignificants ii. iii. 21 I would not for the world be such a coward as you are—afraid of your own shadow! But yet, on the other hand, I don't think it right to be over confident.
1798 C. Stearns Death of Socrates ii. 401 At the Olympic games, being careless, and over confident of victory—I was beaten in the chariot-race by Pisistratus of Samos.
1836 W. Irving Astoria I. 67 Mr. Astor was not over-confident of the stability and firm faith of these mercurial beings.
1877 S. J. Owen in Marquess Wellesley Select. Despatches Introd. p. xxvi Lake's..over-confident attempts to scramble into Bhurtpore without proper appliances.
1956 T. Beecham Let. 27 June in K. Gregory First Cuckoo (1978) 247 I have indicated elsewhere what are the necessary and fitting alternatives to this present overgrown, over-staffed, and over-confident musical machine.
1997 C. Frazier Cold Mountain 57 They looked to be layabouts, drunk maybe, and overconfident.
This entry has been updated (OED Third Edition, December 2004; most recently modified version published online March 2022).
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adj.a1617