Improver and Preservative

Improver noun - Someone devoted to the promotion of human welfare and to social reforms.

Preservative and improver are semantically related. In some cases you can use "Preservative" instead an adjective "Improver".

Nearby Words: improve, improvement, improved, improving, improvable

Preservative adjective - Tending or having the power to preserve.

Improver and preservative are semantically related. Sometimes you can use "Improver" instead an adjective "Preservative".

Nearby Words: preserve, preservation, preserver, preserving, preservationist