different between strangeness vs unusualness

English

From strange +? -ness.

strangeness (usually uncountable, plural strangenesses)

(uncountable) The state or quality of being strange, odd or weird.
Synonyms: oddity, weirdness; see also Thesaurus:strangeness
(countable) The product or result of being strange.
(particle physics) One of the quantum numbers of subatomic particles, depending upon the relative number of strange quarks and anti-strange quarks.
Coordinate term: charm

From unusual +? -ness.

unusualness (countable and uncountable, plural unusualnesses)

(uncountable) The condition or state of being unusual.
Synonyms: abnormality, remarkableness, weirdness; see also Thesaurus:strangeness
(countable) Something unusual; an aberration.
Synonyms: deviance, oddity, outlier; see also Thesaurus:anomaly

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