Silence
Still, Quiet
noun, な adjective
せいじゃく
無言 (むごん) Silence
沈黙 (ちんもく) Silence, Hush, Awkward Silence
寡黙 (かもく) Silent, Shy
静粛 (せいしゅく) Silent
静寂 (せいじゃく) Silence, Still, Quiet
静か (しずか) Quiet
閑静 (かんせい) Quiet
閑散 (かんさん) Deserted, Inactive, Leisure, Quiet
悠々 (ゆうゆう) Quiet, Calm, Leisurely, Easy
They say せい Jack じゃく loves Silence.