adverb
: in a tacit manner: as
a. : without speaking : silently
held his look, tacitly assuring him that she valued it fully — Helen Howe
b. : by unexpressed agreement, allowance, or understanding : implicitly , acquiescently
tacitly consenting to whatever violence must be done — K.K.Darrow
tacitly permitted by the judges to practise — H.D.Hazeltine
phenomena … tacitly recognized since time immemorial — Ralph Linton
c. : without acknowledgment
borrowed extensively but tacitly from these … volumes — J.T.Krumpelmann