maturity

1 the state of being fully grown or developed people are legally considered to have reached maturity at the age of 18 in the United States Synonyms adulthood, adultness, majority Related Words manhood, womanhood; bloom, flush, heyday, prime; autumn, middle age, midlife Near Antonyms babyhood, infancy, toddlerhood; adolescence, childhood, youth Antonyms immaturity, minority, nonage

2 the state of being an old person special senior citizen discounts are one advantage of maturity Synonyms age, agedness, elderliness, ancientnessRelated Words senectitude; venerableness; anecdotage, anility, caducity, dotage, second childhood, senescence, senility; feebleness, infirmityNear Antonyms freshness, prime, youthfulness; adolescence, immaturity, juvenility, minority, nonageAntonyms youngness, youth