The difference between Casual and Necessary
When used as nouns, casual means a worker who is only working for a company occasionally, not as its permanent employee, whereas necessary means a place to do the "necessary" business of urination and defecation: an outhouse or lavatory.
When used as adjectives, casual means happening by chance, whereas necessary means required, essential, whether logically inescapable or needed in order to achieve a desired result or avoid some penalty.
check bellow for the other definitions of Casual and Necessary
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Casual as an adjective:
Happening by chance.
Examples:
"They only had casual meetings."
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Casual as an adjective:
Coming without regularity; occasional or incidental.
Examples:
"The purchase of donuts was just a casual expense."
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Casual as an adjective:
Employed irregularly.
Examples:
"He was just a casual worker."
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Casual as an adjective:
Careless.
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Casual as an adjective:
Happening or coming to pass without design.
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Casual as an adjective:
Informal, relaxed.
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Casual as an adjective:
Designed for informal or everyday use.
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Casual as a noun (British, Australian, NZ):
A worker who is only working for a company occasionally, not as its permanent employee.
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Casual as a noun:
A soldier temporarily at a place of duty, usually en route to another place of duty.
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Casual as a noun (UK):
A member of a group of football hooligans who wear expensive designer clothing to avoid police attention; see .
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Casual as a noun:
One who receives relief for a night in a parish to which he does not belong; a vagrant.
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Casual as a noun (video games, informal, derogatory):
A player of casual games.
Examples:
"usex The devs dumbed the game down so the casuals could enjoy it."
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Casual as a noun (British):
(dated) A tramp.
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Necessary as an adjective:
Required, essential, whether logically inescapable or needed in order to achieve a desired result or avoid some penalty.
Examples:
"Although I wished to think that all was false, it was yet [[necessary]] that that I, who thus thought, must in some sense exist."
"It is absolutely [[necessary]] that you call and confirm your appointment."
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Necessary as an adjective:
Unavoidable, inevitable.
Examples:
"If it is absolutely [[necessary]] to use public computers, you should plan ahead and forward your e-mail to a temporary, disposable account."
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Necessary as an adjective (obsolete):
Determined, involuntary: acting from compulsion rather than free will.
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Necessary as a noun (UK, archaic, _, euphemism, usually with the definite article):
A place to do the "necessary" business of urination and defecation: an outhouse or lavatory.