Incapable of self-restraint. Obsolete. rare.

Of a person, the mind, etc.: acting without moderation or restraint; intemperate; unreasonable. In later use chiefly modifying an agent noun…

Of persons: Wanting in moderation; going beyond reasonable bounds in action or opinion; extreme.

Of persons: Not conforming or subject to law or order, disorderly; unrestrained in passions, feelings, or conduct; immoderate, intemperate.

Unrestrained in behaviour or deportment; not subject to proper restraint; loose, wanton. (In quot. 1620, Wasteful, lavish.) Obsolete (except as…

Of persons: Given to excess in anything; intemperate, extravagant. Now only with agent-nouns or predicatively with const. in.

‘Roving beyond just limits or prescribed methods’ (Johnson); exceeding the bounds of reason or… of persons. Now rare except with agent-noun or const…

Causing or accompanied by emotional discomfort, as embarrassment, irritation, etc. Also in weakened sense: immoderate, excessive.

(un-, prefix1 affix 4.)