Slow and Underactive

Slow adjective - Moving or proceeding at less than the normal, desirable, or required speed.

Underactive and slow are semantically related. In some cases you can use "Underactive" instead an adjective "Slow".

Nearby Words: slowness, slowed, slowly, slowing, slowdown

Underactive adjective - Abnormally inactive.

Slow and underactive are semantically related. Sometimes you can use "Slow" instead an adjective "Underactive".