communicative
communicatory
prolix
spoken
adjectival
adverbial
answering
articulated
attributive
authentic
bona fide
candid
card-carrying
colloquial
communicating
communicational
communional
conjunctive
conversational
copulative
correct
dinkum
enunciated
expressed
following the letter
formal
functional
genuine
glossematic
good
grammatic
honest
honest-to-God
iconic
inartificial
interacting
interactional
interactive
intercommunicational
intercommunicative
intercommunional
interresponsive
interrogative
interrogatory
intransitive
lawful
legitimate
lexemic
lexical
lifelike
lingual
linguistic
linking
literal
logical
mental
sexual
visual
burble
herbal
nonverbal
implied