The word 'vain' has two definitions, one meaning 'excessively proud of one's appearance or accomplishments', egotistical; and the other meaning 'not yielding the desired outcome', futile.
Synonyms Egotistical: affected, aloof, arrogant, autocratic, big-headed, boastful, boasting, bragging, cocky (slang), conceited, egocentric, egoistic, egomaniacal, haughty, high-and-mighty, individualistic, inflated, narcissistic, ostentatious, overweening, pleased with oneself, pompous, prideful, proud, puffed up, self-absorbed, self-admiring, self-centered, self-important, stuck-up, swaggering, swollen-headed, vainglorious, et al. Futile: abortive, barren, bootless, delusive, delusory, empty, frivolous, fruitless, going nowhere, hollow, idle, in vicious circle, inefficacious, ineffectual, insignificant, misleading, no-win, not a prayer, nugatory, otiose, paltry, petty, pointless, profitless, puny, senseless, shuck, slight, sterile, time-wasting, trifling, trivial, unavailing, unimportant, unproductive, unprofitable, unsuccessful, useless, valueless, void, worthless, et al.
The suffix -dom means a state, condition, or quality of being. It is used to form nouns indicating a specific quality or condition associated with the base word.
Equality
parity
The quality or condition of being important; significance.
The quality or condition of being brothers
The quality or condition of being brothers
The quality or condition of being salable; salableness.
The quality or condition of being succulent; juiciness; as, the succulence of a peach.
It is the state, condition, quality, degree, essence of being a bottle.
Palpability is the quality or condition of being palpable - capable of being touched, felt, perceived or experienced.
The condition or quality of being narrow.
The population of Alike is 5,766.