Unoriginal means lacking freshness, creativity, or new ideas. When something is unoriginal, it copies or repeats what's already been done instead of bringing something new to the table.

An unoriginal book report might just repeat what everyone else has already said about the story, while an original one offers fresh insights or connections the teacher hasn't heard before. An unoriginal Halloween costume is one that ten other kids are also wearing, like the year when every third person dressed as a popular movie character.

The word isn't always harsh criticism. Sometimes unoriginal just means familiar or predictable. A joke can be unoriginal because everyone's heard it before, but still make people smile. A song might use unoriginal chord progressions that appear in thousands of other songs, yet still sound pleasant.

However, when someone calls your work unoriginal, they're usually pointing out that you're playing it safe instead of taking creative risks. In school projects, unoriginal work can mean you haven't pushed yourself to think independently. The opposite of unoriginal is original, meaning fresh, creative, and distinctively your own. Great inventors, writers, and artists become known for their originality, their ability to see things in ways no one else has thought of before.