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vain (EN)
adjectiu

adjectiu “vain”

forma base vain (more/most)
  1. infructuós
    They tried in vain to push the broken car up the steep hill.
  2. vanitós
    She was so vain that she spent hours looking at herself in the mirror every day.
  3. fútil (per aclarir: sense valor veritable o significat)
    His promise turned out to be vain when he failed to follow through with any action.