greaseless

adjective

1. Without fats or oils.

- Many lubricants are greaseless, being based on graphite or silicone.

2. Not feeling greasy to the touch; not leaving a non-water-soluble residue.

- Users insist on greaseless cosmetics.

3. Not requiring separate lubricant.

- The O-ring and the Teflon formed a greaseless seal.