aesthetic is a word that is frequently misused since it became popular. Examples:
This interior designer has a minimalist aesthetic. (proper use)
This is aesthetic. (improper)
"Aesthetic" is not really a synonym for attractive, to my taste, etc. It's a complicated word that's hard to explain but has to do with the character of a specific genre, art form, movement, etc. For example, minimalism has a specific set of values, a certain look, etc that is all under that umbrella of its aesthetic. The misuse of the word aesthetic drives me a little nuts because over time, misused/misspelled words get absorbed into the popular consciousness. This is why "irregardless" is now in the dictionary. People kept using regardless incorrectly for so long that the dictionary folks just gave up.
I know language is a living thing, but... bleh.
/rant