vainest in English

adjective

1

having or showing an excessively high opinion of one's appearance, abilities, or worth.

their flattery made him vain

synonyms: conceited, narcissistic, self-loving, in love with oneself, self-admiring, self-regarding, self-obsessed, egocentric, egotistic, egotistical, proud, arrogant, boastful, cocky, cocksure, immodest, swaggering, big-headed, vainglorious

2

producing no result; useless.

a vain attempt to tidy up the room

adjective

conceited, narcissistic, self-loving, in love with oneself, self-admiring, self-regarding, self-obsessed, egocentric, egotistic, egotistical, proud, arrogant, boastful, cocky, cocksure, immodest, swaggering, big-headed, vainglorious
futile, useless, pointless, to no purpose, hopeless, in vain, ineffective, ineffectual, inefficacious, impotent, unavailing, to no avail, fruitless, profitless, unrewarding, unproductive, unsuccessful, failed, abortive, for nothing, thwarted, frustrated, foiled, bootless
sleeveless, futile, fruitless, bootless
egotistic, conceited, swollen-headed, self-conceited, swollen, egotistical

Use "vainest" in a sentence

1. Voters have rejected what can only be described as the Crassest, vainest, stupidest, most dysfunctional leadership this country has ever suffered.