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Longman Dictionary of Contemporary English
over-optimistic
adjective
COLLOCATIONS FROM OTHER ENTRIES
over-optimisticBritish English
▪ somewhat over-optimistic expectations
EXAMPLES FROM OTHER ENTRIES
▪ Reports that the hostages will be released soon are over-optimistic.
EXAMPLES FROM CORPUS
▪ A new church with a rapid initial growth rate should beware of an over-optimistic future projection.
▪ But the letters lapse into exasperation and impatience as it became clear that the plans were wildly over-optimistic.
▪ Even now, the shares of many housebuilders and contractors look over-optimistic.
▪ Inevitably occasions will also arise when an initial valuation proves over-optimistic, for example where a plaintiff makes an unexpectedly good recovery.
▪ Many of the orders were based on over-optimistic plans for expansion rather than the replacement of existing aircraft.
▪ Retailers expect a bigger improvement in June, but their expectations have proved to be over-optimistic in the past two months.
▪ Sometimes, though, the expectation is over-optimistic.
▪ The panel had also been over-optimistic on employment which fell by 3 percent compared to the 2 percent forecast.

Usage examples of "over-optimistic".

This however comes from Warburg who is alternately over-optimistic and over-pessimistic -- at any rate, always believes in the imminence of enormous and dramatic changes.

Smith opened the leading door, did his best to ignore the icy blast of wind that gusted in through the opening, and looked vertically downwards, realising that he had been over-optimistic in his assessment of the distance between cable-car and ground.

If anything, she thought him over-optimistic, advancing as he was against a strong defensive front: the T'Kai right was protected by a river, the left anchored by high ground and a stand of trees.

Dimity, I think we have been over-optimistic about the number of Protectors on the Hollow Moon and the damage we did.

I talked with her briefly on the evening of my arrival, before I presented myself to Cesare, and expressed to her my doubts as to whether Lucrezia might have been over-optimistic about her brother's desire for a reconciliation with me.