manhoodEnglishOxford American Thesaurusmanhood noun 1 the transition from boyhood to manhood: maturity, sexual maturity, adulthood. 2 an insult to his manhood: virility, manliness, machismo, masculinity, maleness; mettle, spirit, fortitude, resolution, determination, manfulness, bravery, courage, strength, intrepidity, valor, heroism, boldness.