What's the difference between optimistic and overconfident?

Optimistic


Definition:

  • (a.) Of or pertaining to optimism; tending, or conforming, to the opinion that all events are ordered for the best.
  • (a.) Hopeful; sanguine; as, an optimistic view.

Example Sentences:

  • (1) Johnson and Campion are optimistic that marriage equality will win out, and soon.
  • (2) Two years ago, the Intergovernmental Panel on Climate Change declared Egypt's Nile Delta to be among the top three areas on the planet most vulnerable to a rise in sea levels, and even the most optimistic predictions of global temperature increase will still displace millions of Egyptians from one of the most densely populated regions on earth.
  • (3) Even under the most optimistic scenarios, shale gas is projected to meet just 10% of European gas demand by 2030.
  • (4) I have the optimist's world view of America as a tolerant place, where anyone can grow up to be the President.
  • (5) He says there are many optimistic tales to tell – migrant families, he says, are helping to drive up standards in local schools – but such stories tend to get lost in an online world that has precious little interest in them.
  • (6) All I wanted to know was that this was not a hereditary disease – partly, I suppose, because I was so young and carefree and optimistic.
  • (7) I was optimistic that I could leave behind my reputation as the nerdy one of my friends.
  • (8) The new Poles are generally optimistic and open-minded, believing their destiny to be in their own hands, that Poland shouldn't be prisoner to its past and that the future waxes bright for their country.
  • (9) The Bank of England has a record of being over-optimistic about Britain's prospects and in its latest assessment of the economy once again cut its growth forecast.
  • (10) Excessively optimistic judgements of driving competency and accident risk have often been implicated in the disproportionate involvement of young males in traffic crashes.
  • (11) I would urge her to follow the example of Elizabeth I, who, on appointing as her chief minister Sir William Cecil, said of him: “This opinion I have of you: that whatever you know my personal opinion to be, you will give me advice that is best for the realm.” Valerie Crews Beckenham, Kent • Another immensely qualified person loses their job for not being optimistic enough about Brexit.
  • (12) English speakers are the least optimistic about the chances of avoiding dangerous climate change Out of more than 6,000 self-selecting respondents, many expressed dismay at the slow pace of political action on climate change.
  • (13) Both brothers had been in optimistic mood earlier in the day.
  • (14) Arsène Wenger said he hopes the midfielder will return in four weeks and, “if all goes well, three”, but the estimate is believed to be optimistic.
  • (15) The optimists, not the least of whom are the British, believe that the summit is a starting point on which to build.
  • (16) "We'd have preferred that, in addition to these increases, we had seen our market share grow overall this quarter but we are optimistic that some of the sector's major rebranding campaigns and marketing initiatives will start taking effect in results this year."
  • (17) The most optimistic of them sees a fall by 2030, but this would require huge investments in renewable energy as well as financial and technical support from overseas.
  • (18) Jints fans, suddenly optimistic about their postseason chances, forgot how bad their team was over the fortnight - today they are being reminded.
  • (19) Reagan's youthful hero was FDR – another optimist, albeit a far steelier one –  who turned the federal government into the agent of recovery from the Great Depression and of victory in World War II.
  • (20) A recent National Audit Office study pinpointed these precisely: the DWP’s approach, it finds, is too rigid; its policy assumptions tend to be untested and over-optimistic; strategically, it fails to anticipate uncertainty (specifically, the possibility of failure); it neglects to monitor progress, so does not notice when things go wrong until far too late.

Overconfident


Definition:

  • (a.) Confident to excess.

Example Sentences:

  • (1) Second, if you follow this line of reasoning, men in general tend to be overconfident (pdf) – the quantity of submissions has nothing to do with the quality of submissions.
  • (2) First comes a feeling of euphoria: then the diver gets overconfident, lulled into a false sense of security, and dangerously overestimates how long they have left.
  • (3) This papillary malignant transformation, not previously observed in inverted papillomas, cautions against overconfidence in benign nature of inverted papilloma.
  • (4) All would have been more suspicious about King's overconfident advice.
  • (5) This does not appear to be due simply to overconfidence in their abilities, since it was the younger and less experienced pilots who held the most unrealistically optimistic appraisals of their ability.
  • (6) Arrogant overconfidence by the NHS – imagine that – means that what should be an extraordinary asset both to patient care and to the UK science base may have been lost for the foreseeable future.
  • (7) As in Dunning et al., moreover, overconfidence could be traced to two sources.
  • (8) Overconfidence and underconfidence indices were also calculated by using the indicated levels of certainty.
  • (9) That impact has rightly produced a challenge to the overconfident intellectual assumptions of the pre-crisis era – assumptions never more prevalent than in some pre-crisis Davos meetings.
  • (10) Of key importance, depressed Ss were less accurate in their predictions, and thus more overconfident, than their nondepressed counterparts.
  • (11) It was a policy pushed by an Afghan government anxious to get British soldiers to fight the insurgency in key areas, and overconfident British officers eagerly pursued it.
  • (12) Further analysis revealed two specific sources of overconfidence.
  • (13) The "well encapsulated" pleomorphic adenoma has at best a pseudocapsule which allows for bits of satellite tumor to be left behind at ""enucleation" surgery as well as for easy "spillage" of tumor by the overconfident surgeon.
  • (14) In the end its overconfidence was its ruin; one interviewee too many, shackled naked to a chair, had been half suffocated with a plastic bag to force a confession.
  • (15) (3) Generally speaking, guidance should be given not to be overconfident or overdefensive in pregnancy.
  • (16) Unanticipated outcomes included: Alcohol intoxication significantly hindered recall from long-term memory, contrary to previous conclusions that alcohol does not affect retrieval; people's expectancy of alcohol had no significant effect on memory or metamemory performance, contrary to its established effects on other kinds of performance; and alcohol intoxication produced no significant overconfidence in judgments about recall or in feeling-of-knowing judgments, contrary to the overconfidence produced in other kinds of judgments such as an intoxicated person's assessment of his driving ability.
  • (17) Overconfidence in clinicians was examined in two independently designed studies, each using a different research approach.
  • (18) This previously described method allows the examinee to receive 'overconfidence' and 'underconfidence' scores.
  • (19) Scores of British troops have been killed in Sangin since Tony Blair, egged on by overconfident British generals, dispatched more than 3,000 service men and women to Helmand in 2006.
  • (20) Buoyed for the previous decade by absurdly high inflows of globally generated credit that created false booms, they suddenly found their overconfident banks had wildly lent too much.