The adjective acquired describes something you're not born with: you gain or develop it later in life, like your acquired taste for coffee.
Acquired comes from the Latin word acquirere, meaning "to seek in addition to. Something acquired is something you have gotten, not something you always had. For example, you may have acquired the habit of buying lots...and lots of sneakers after getting a job in a shoe store. Or, if you have an acquired habit of reading novels, this is something that developed over time. After all, you weren't born reading!