unsubstantial

As a letter s

is the letter s with a.

As an adjective unsubstantial is

(archaic).

As an adjective unsubstantial

is (archaic).

As a noun null is

zero, nil; the cardinal number before einn.

Unsubstantial is a related term of temporary.

As adjectives the difference between unsubstantial and temporary

is that unsubstantial is (archaic) while temporary is not permanent; existing only for a period or periods of time.

As a noun temporary is

one serving for a limited time; short-term employee.

As adjectives the difference between unsubstantial and undefined

is that unsubstantial is (archaic) while undefined is lacking a definition or value.

Unsubstantial is a related term of groveling.

As an adjective unsubstantial

is (archaic).

As a verb groveling is

(us).

As a noun groveling is

the act of one who grovels.

Material is a related term of unsubstantial.

As a noun material

is material (matter which may be shaped or manipulated).

As an adjective unsubstantial is

(archaic).

Unsubstantial is a related term of corrupt.

As adjectives the difference between unsubstantial and corrupt

is that unsubstantial is (archaic) while corrupt is in a depraved state; debased; perverted; morally degenerate; weak in morals.

As a verb corrupt is

to make ; to change from good to bad; to draw away from the right path; to deprave; to pervert.

Unsubstantial is a related term of spectral.

As adjectives the difference between unsubstantial and spectral

is that unsubstantial is (archaic) while spectral is having the appearance of a spectre; ghostly.

Vile is a related term of unsubstantial.

As adjectives the difference between vile and unsubstantial

is that vile is morally low; base; despicable while unsubstantial is (archaic).