Here's what rhymes with communicative.

Consider these alternatives

rationality / personality cognition / position argumentation / operation conversational / educational intercultural / cultural conceptualization / relation normative / formative behavioural / hehavioural emotive / motive representational / educational semiotic / logic psychopathology / quality abstruse / use argumentative / representative extroverted / converted neurobehavioral / behavioral introverted / converted naturalistic / characteristic relational / educational