over-enthusiasmn.
/ˌəʊv(ə)rᵻnˈθjuːzɪaz(ə)m/, /ˌəʊv(ə)rɛnˈθjuːzɪaz(ə)m/, U.S. /ˈˌoʊvərənˈθ(j)uziˌæz(ə)m/ Excessive enthusiasm.
ΘΚΠ
the mind > emotion > zeal or enthusiasm > [noun] > overzealousness
overforwardness1593
overzeal1682
over-eagernessa1720
over-enthusiasm1842
overzealousness1849
fanaticism1855
1842 U.S. Mag. & Democratic Rev. July 45/1 This over-enthusiasm for savage life forms almost the only fault we have to find.
1860 H. R. Helper Compend. Impending Crisis of South 123 This vast region of country was converted to the old Roman faith, by life-long labor of this society, and not by the over-enthusiasm of Cortez and his robbers.
1932 Amer. Econ. Rev. 22 194 A stock exchange boom may be brought about by over-enthusiasm on the part of investors.
1970 Nature 24 Oct. 303/1 An over-enthusiasm for classifying projects of very marginal secrecy may have hampered progress.
1993 Tatler July 113/1 His friends call it over-enthusiasm, his enemies irresponsibility.
This entry has been updated (OED Third Edition, December 2004; most recently modified version published online March 2022).
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n.1842