vain
How to Use Vain
Learner’s notesIn plain EnglishEither full of yourself about your looks, or (in the phrase "in vain") pointless and unsuccessful.
Don't confuse with "vein" (a blood vessel) or "vane" (a weather vane) — all three sound identical.
Word Forms
vainer comparative, more vain comparative, vained past tense, vains singular, vainest superlative, most vain superlative
Fill the Gap
Can you complete this real example?
He was too _____ to be seen in public without styling his hair first.
Etymology
From Old French vain, from Latin vanus, meaning "empty."