The quality of being woolly-headed: illogicalness, irrationality.

Alternative spelling of hotheadedness

(chiefly in combination) The state or quality of having a particular type of head (in various senses).

In a level-headed manner.

(in combination) In the specified headed manner

Alternative form of dickheadedly

plural of wrong-headedness

In a light-headed manner; with a light head.

The state or quality of being big-headed.

Alternative form of coolheadedness.