vain

As a noun vain

is .

As an acronym pet is

(organic compound) polyethylene terephthalate.

Incautious is a related term of vain.

As an adjective incautious

is careless, reckless, not exercising proper caution.

As a noun vain is

.

As nouns the difference between vain and vainglory

is that vain is while vainglory is excessive vanity.

Foolish is a synonym of vain.

As an adjective foolish

is lacking good sense or judgement; unwise.

As a noun vain is

.

Vain is a synonym of showy.

As a noun vain

is .

As an adjective showy is

(sometimes|derogatory) calling attention; flashy; standing out to the eye.

Vain is a related term of absurd.

As a noun vain

is .

As an adjective absurd is

absurd.

Barren is a related term of vain.

As nouns the difference between barren and vain

is that barren is bar while vain is .

Unwise is a related term of vain.

As an adjective unwise

is not wise; defective in wisdom; injudicious; indiscreet; foolish.

As a noun vain is

.

As adjectives the difference between vain and valid

is that vain is overly proud of oneself, especially concerning appearance; having a high opinion of one's own accomplishments with slight reason while valid is well grounded or justifiable, pertinent.

Egotisticegotistical is a synonym of vain.

As a noun vain is

.