Troublingly, "blonde" isn't even a British vs. American English thing -- it's a gendered descriptor, of which we have relatively few remaining in English. Blond

Troublingly, "blonde" isn't even a British vs. American English thing -- it's a gendered descriptor, of which we have relatively few remaining in English. Blonde is the feminine form, blond is the masculine/neuter form. Whether you want to preserve gendered adjectives is a different question entirely, but the definitions are rather clear, having carried over from French.