minor

Lesser or smaller in amount, extent, or size.

Lesser in importance, rank, or stature.

Lesser in seriousness or danger.

Not having reached legal adulthood.

Relating to or being the younger or junior of two pupils with the same surname.

Of or relating to a secondary area of academic specialization.

Dealing with a more restricted category.

Relating to or being a minor scale.

Less in distance by a half step than the corresponding major interval.