simple

adjective
UK /ˈsɪm.pəl/
US /ˈsɪm.pəl/

Easy to do or understand.

The puzzle was simple, so I finished it quickly.


OTHER MEANINGS

2. Not fancy or decorated.

She wore a simple white dress.

3. Having few parts or pieces.

This is a simple machine with just two wheels.

4. Plain and honest, not trying to trick anyone.

The truth is simple: he forgot his keys.