the GNU version of the Collaborative International Dictionary of English
n. The quality of being heady.
The Century Dictionary and Cyclopedia
n. The condition or quality of being heady, in any sense of that word.
Word Usage
"I further argued that Ghost Whisperer's "Melinda Gordon" (Jennifer Love Hewitt) had the potential to blend her "headiness" with her "sexiness", resulting in a relatively well-rounded and independent character."