vain
adjectiveUK /veɪn/
US /veɪn/
Someone who is vain thinks they are the best and loves to look at themselves.
The vain prince spent hours looking at himself in the mirror.
RELATED WORDS
OTHER MEANINGS
2. Something that is vain is useless and does not succeed.
They made a vain attempt to catch the bus, but it had already left.
3. When you do something in vain, you do it without success.
She called for help in vain because no one could hear her.
4. Vain can describe something empty or without real value.
He made a vain promise that he could not keep.