Difference between Optimistic and Buoyant

OPTIMISTIC vs BUOYANT: ADJECTIVE

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

Causing buoyancy of mind; cheering; invigorating.
Figuratively, cheerful; hopeful; not easily depressed.
Bearing up, as a fluid; sustaining another body by reason of greater specific gravity.
Having the quality of rising or floating in a fluid; floating; relatively light; that will not sink.

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

Optimism, Sanguine, Rosy, Optimistic, Bullish, Strong, Booming, Robust, Buoyancy, Upbeat, Light, Floaty, Perky, Chirpy, Cheerful

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

Vibrant, Steady, Sanguine, Rosy, Optimistic, Bullish, Strong, Booming, Robust, Upbeat, Light, Floaty, Perky, Chirpy, Cheerful

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.

Mildred laughed the insouciant laugh of buoyant youth.
Commonwealth demand for admission to the Academy buoyant.
Buoyant plumes of hot, humid air convect upward.
His heart is buoyant, the boat less so.
Therefore, the net buoyant force is always upwards.
Plastic Foam, Unicellular, Buoyant, Sheet and Molded Shape.
Plastic Foam, Unicellular, Buoyant Sheet and Molded Shapes.
Greg alive is that he was buoyant, happy.
The fatter you are, the more buoyant you will be, and the more buoyant you are, the less you will weigh underwater.
Since magnetic fields inside the Sun can become buoyant, one may think of the acronym SODA as describing the amount of buoyant flux.