vain

Unoccupied is a related term of vain.

As an adjective unoccupied

is (of a house etc) not inhabited, especially by a tenant.

As a noun vain is

.

As adjectives the difference between frivolous and vain

is that frivolous is silly, especially at an inappropriate time or in an inappropriate manner while vain is overly proud of oneself, especially concerning appearance; having a high opinion of one's own accomplishments with slight reason.

Vain is a related term of opinionated.

As a noun vain

is .

As an adjective opinionated is

having very strong opinions.

Shallow-brained is a related term of vain.

As a noun vain is

.

Vain is a related term of disappointing.

As a noun vain

is .

As an adjective disappointing is

that disappoints or disappoint.

As a verb disappointing is

.

Vain is a synonym of deceitful.

As a noun vain

is .

As an adjective deceitful is

deliberately misleading or cheating.

Imprudent is a related term of vain.

As an adjective imprudent

is not prudent; wanting in prudence or discretion; indiscreet; injudicious; not attentive to consequence; improper.

As a noun vain is

.

Sluggish is a related term of vain.

As an adjective sluggish

is habitually idle and lazy; slothful; dull; inactive; as, a sluggish man.

As a noun vain is

.

Unfounded is a related term of vain.

As an adjective unfounded

is having no strong foundation; not based on solid reasons or facts.

As a noun vain is

.

As an adjective naive

is .

As a noun vain is

.