originalidea

noun
UK /əˈrɪdʒ.ən.əl aɪˈdɪə/
US /əˈrɪdʒ.ən.əl aɪˈdiː.ə/

A thought that is new and made all by yourself.

Her original idea for the school fair was a game with water balloons.


OTHER MEANINGS

2. A plan that nobody has tried before.

Building a robot that waters plants was his original idea.

3. A first version of something, before anyone changes it.

The original idea for the park had a big slide, but they changed it later.

4. A clever thought that solves a problem in a new way.

Her original idea made the long line at lunch move much faster.