Relating to or involving conversation or dialogue between people.
From Latin 'collocutorius,' an adjective form derived from 'collocutio.' Like 'collocution,' this is a very rare formal English word.
You'll almost never see 'collocutory' in modern English because we prefer 'conversational'—but in old philosophy texts or very formal writing, 'collocutory' would signal a high-minded discussion between thinkers.
Complete word intelligence in one call. Free tier — 50 lookups/day.