unitary

adjective
UK /ˈjuːnɪtəri/
US /ˈjuːnɪteri/

Made of just one single part or piece.

The toy is a unitary piece, so it cannot be taken apart.


OTHER MEANINGS

2. Having to do with a system where a central government holds most of the power.

France is a unitary state with a strong central government.

3. Acting as a single whole rather than as separate parts.

The team moved as a unitary force toward the goal.

4. In math, made of a single element or unit.

A unitary matrix is a special kind of square matrix.