casual

As nouns the difference between provisional and casual

is that provisional is a member of the while casual is (british|nz) a worker who is only working for a company occasionally, not as its permanent employee.

As an adjective casual is

happening by chance.

As adjectives the difference between casual and natural

is that casual is happening by chance while natural is that exists and evolved within the confines of an ecosystem.

As nouns the difference between casual and natural

is that casual is (british|nz) a worker who is only working for a company occasionally, not as its permanent employee while natural is .

Casual is a synonym of unforeseen.

As adjectives the difference between casual and unforeseen

is that casual is happening by chance while unforeseen is not foreseen.

As a noun casual

is (british|nz) a worker who is only working for a company occasionally, not as its permanent employee.

As adjectives the difference between meta and casual

is that meta is self-referential; at a higher level while casual is happening by chance.

As nouns the difference between meta and casual

is that meta is boundary marker while casual is a worker who is only working for a company occasionally, not as its permanent employee.

As adjectives the difference between aloof and casual

is that aloof is reserved and remote; either physically or emotionally distant; standoffish while casual is happening by chance.

As an adverb aloof

is at or from a distance, but within view, or at a small distance; apart; away.

As a preposition aloof

is (obsolete) away from; clear of.

As a noun casual is

(british|nz) a worker who is only working for a company occasionally, not as its permanent employee.

As adjectives the difference between casual and lighthearted

is that casual is happening by chance while lighthearted is joyful, glad, taking pleasure in being alive not depressed or sad.

As a noun casual

is (british|nz) a worker who is only working for a company occasionally, not as its permanent employee.

As nouns the difference between professional and casual

is that professional is a person who belongs to a profession while casual is a worker who is only working for a company occasionally, not as its permanent employee.

As adjectives the difference between professional and casual

is that professional is of, pertaining to, or in accordance with the (usually high) standards of a profession while casual is happening by chance.