An antonym for physical features is 2 dimensional
pseudoscience
A litre is a physical quantity of volume. It has no antonym.
Antonym as in the opposite of synonym? That doesn't really have a physical property other than the fact that you can see it.
Synonym - well-being. Antonym - illness.
physical science
It is physical science.
It is physical science.
physical and science
Analog, Physical, Natural
morally, mentally
A physical science as thermal properties are physical properties.