Antonyms of adj surface-active

1 sense of surface-active

Sense 1
surface-active -- (capable of lowering the surface tension of a liquid; used especially of detergents)

INDIRECT (VIA active) -> inactive -- (not exerting influence or change)

Similarity of adj surface-active

1 sense of surface-active

Sense 1
surface-active -- (capable of lowering the surface tension of a liquid; used especially of detergents)
       => active (vs. inactive) -- (exerting influence or producing a change or effect; "an active ingredient")