n. 25B6; noun
she peered into the gloom : DARKNESS, dark, dimness, blackness, murkiness, shadows, shade; dusk, twilight, gloaming.
his gloom deepened : DESPONDENCY, depression, dejection, downheartedness, melancholy, melancholia, unhappiness, sadness, glumness, gloominess, misery, sorrow, woe, wretchedness; despair, pessimism, hopelessness; informal the blues, the dumps.
light, happiness.