communicational

The word "communicational" pertains to anything involving the process of conveying information, thoughts, or emotions. It is uncommon in casual conversation, and it can sound a bit stiff or unusual to some readers. In many situations, English prefers the noun "communication" used like an adjective (for example, "communication training," "communication tools," or "communication problems") or the adjective "communicative." Still, "communicational" can be useful when you want to keep the focus on communication as a process—its patterns, limits, and structure—rather than only on what is being said.

You are most likely to encounter "communicational" in academic and professional contexts, such as communication studies, linguistics, sociology, psychology, and workplace research. A researcher might study communicational patterns in a family (who speaks, who listens, who interrupts), or a designer might evaluate the communicational effectiveness of an app (whether it helps users understand what to do next).

It can also be used when talking about the demands of a situation: communicational needs, communicational goals, or communicational breakdowns in a team. Importantly, it does not mean the same thing as "communicative." A communicative person is someone who talks easily or shares readily; communicational refers to communication itself—especially the way it is organized, carried out, and supported (or blocked).

If you choose "communicational," it usually signals a more analytical angle: you are pointing to the how of sharing information. If you want a more natural tone, "communication" or "communicative" is often the better choice.