emptiness noun 1 the peaceful emptiness of her mother's sitting room. vacantness, bareness, blankness, clearness, barrenness, desolation; lack of contents, lack of adornment; rare voidness. ANTONYMS crowdedness; fullness. 2 the emptiness of his boasting. meaninglessness, hollowness, idleness, ineffectiveness, ineffectuality, uselessness, futility, worthlessness, fruitlessness, insubstantiality. ANTONYMS meaningfulness. 3 she was suffering from a sense of utter emptiness. futility, purposelessness, pointlessness, aimlessness, meaninglessness, worthlessness, valuelessness, hollowness, barrenness, senselessness, banality, triviality, insignificance, unimportance; archaic bootlessness. ANTONYMS worth. 4 Sarah had filled an emptiness in his life. void, vacuum, vacuity, empty space, blank space, gap, vacancy, hiatus, hole, hollow, cavity, chasm, abyss, gulf. 5 she was shocked by the emptiness in his eyes. blankness, expressionlessness, vacancy, vacantness, vacuousness, glaze, fixedness, woodenness, stoniness, impassivity, emotionlessness, unresponsiveness, inscrutability; lack of life, lack of animation. ANTONYMS expressiveness.