implicit
inexplicit
assumed
implied
inarticulate
inferred
intimated
silent
suggested
taken for granted
undeclared
understood
unexpressed
unsaid
unspoken
unstated
unuttered
unvoiced
wordless
taciturn
taciturnity
taciturnly
cordial
emphatic
express
formal
indirect
long-standing
mute
mutual
prior
reciprocal
reluctant
unanimous
unconditional
unequivocal
unqualified
unquestioning
unreserved
verbal
voluntary
Bassett
basset