blondeness noun2 •The extent to which someone or something is blonde.I got dozens of winks, she got hundreds. One must never ever underestimate the power of blondeness and bustiness in the sexual imaginings of men. It’s not easy for a petite brunette to keep up. — 2014 •(offensive) Stupidity, dopiness.After a slightly panicked moment when I realised I had no key to get into my house, the blondeness passed and I remembered I hadn't actually locked it[.] — 2013 formsblondenesses