Prudent.

Of a person: that acts or takes decisions after careful thought or consideration; measured and thoughtful. Also: that acts purposely or with intent.

Refraining from hasty decision or action; cautious, deliberate. Obsolete.

The action of deliberate, v. (in various senses).

Of persons, etc.: Having or showing consideration; thoughtful, deliberate, prudent. Obsolete.

That deliberates (in various senses of deliberate, v.); of or relating to deliberation; characterized by deliberation.

Of a person. Given to excessive pondering or contemplation. Obsolete. rare.

Given to or characterized by the stroking of one's chin, esp. while deliberating or reflecting on a question. Hence: over-intellectual…