Difference between Upbeat and Optimistic

UPBEAT vs OPTIMISTIC: NOUN

An unaccented beat at the start of a musical phrase.
The upward stroke made by a conductor to indicate the beat that leads into a new measure.
An unaccented beat or beats that occur before the first beat of a measure.
A contented state of being happy and healthy and prosperous
An unaccented beat (especially the last beat of a measure)

Expecting the best in all possible ways.
Hopeful; sanguine.
Of or pertaining to optimism; tending, or conforming, to the opinion that all events are ordered for the best.
Expecting the best
Expecting the best in this best of all possible worlds

Of, pertaining to, or characterized by optimism; disposed to take the most hopeful view of a matter; hopeful; sanguine.

Happy, Encouraging, Confident, Hopeful, Optimism, Bullish, Rosy, Positive, Sanguine, Buoyant, Well being, Welfare, Pollyannaish, Cheerful, Optimistic

Satisfied, Convinced, Confident, Hopeful, Pessimistic, Starry eyed, Rose colored, Affirmative, Cheerful, Pollyannaish, Positive, Rosy, Bullish, Upbeat, Sanguine

Heartening, Joyous, Happy, Encouraging, Confident, Hopeful, Bullish, Rosy, Positive, Sanguine, Buoyant, Welfare, Pollyannaish, Cheerful, Optimistic

Satisfied, Convinced, Confident, Hopeful, Pessimistic, Starry eyed, Rose colored, Affirmative, Cheerful, Pollyannaish, Positive, Rosy, Bullish, Upbeat, Sanguine

Should you like combines upbeat Latin Tanks Blitz.
Red was such an upbeat and positive person.
The scheduling team are always upbeat and helpful.
Mathews of Geojit is upbeat on the company.
Aunt Barbara as a kind, loving, upbeat woman.
Jim was always upbeat and full of energy.
Customer Service Specialist to join an upbeat team.
He is upbeat, optimistic and an engaging communicator.
Even a piano, for video presentation upbeat happy background music for motivational background music features upbeat feel the background.
But overall, it's an upbeat budget picture for upbeat times.

Pandemic experts are starting to sound increasingly optimistic.
Correcting for optimistic prediction in small data sets.
Still, ultimately he is guardedly optimistic about mechanism.
Studies conducted in humans show less optimistic findings.
This is an optimistic skyline of New York.
These results are related to the hypothesis of optimistic bias, which states that drinkers are overly optimistic about probabilities of adverse consequences from drink.
In an optimistic locking session, you must take responsibility for coherence and consistence by following an optimistic locking protocol.
SD, through the slightly optimistic last observation carried forward method, to the optimistic complete case analysis.
Are you more optimistic or less optimistic than you were a month ago?
That was idealistic and optimistic, a way too optimistic hope.