overoptimistic

British

/ ˌəʊvərˌɒptɪˈmɪstɪk /

adjective

excessively optimistic

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A Stifel analyst downgraded Microsoft stock to Hold from Buy, citing overoptimistic revenue and earnings expectations.

From Barron's • Feb. 5, 2026

However, he also cautioned against being overoptimistic as the price points remain unknown.

From Reuters • Sep. 11, 2023

England were in charge of the first Test at Edgbaston before the cult of Bazball resulted in an overoptimistic declaration and reckless batting.

From BBC • Jul. 24, 2023

But markets may be overoptimistic on what’s possible in any China deal.

From Los Angeles Times • Feb. 25, 2019

She had no illusions: old plans, if one could ever remember them, the plans that time had overtaken, tended to have a febrile and overoptimistic grip on events.

From "Atonement" by Ian McEwan

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023