adjective
1.
expressed or conveyed without words, speech, or forthright reference
they made a tacit agreement to work together
Synonyms: implicit, implied, inarticulate, inferred, undeclared, understood, unexpressed, unsaid, unspoken, unuttered, wordless
Related Word: alluded (to), hinted (at), intimated, suggested; assumed
Contrasted words: expressed, spoken, verbal; categorical, explicit, express, unequivocal
2.
Synonyms: unspoken 1, silent, unexpressed, unuttered, unvoiced, wordless