optimistic

[ op-tuh-mis-tik ]
/ ˌɒp təˈmɪs tɪk /

adjective

disposed to take a favorable view of events or conditions and to expect the most favorable outcome.
reflecting a favorable view of events and conditions and the expectation of a positive outcome; demonstrating optimism: an optimistic plan.
of or relating to optimism.
Sometimes op·ti·mis·ti·cal.

Origin of optimistic

First recorded in 1840–50; optimist + -ic
Related forms
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for overoptimistic

overoptimistic

/ (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

Word Origin and History for overoptimistic

optimistic


adj.

1845, from optimist + -ic. Related: Optimistical (1809); optimistically.

Online Etymology Dictionary, © 2010 Douglas Harper