1. Serving or acting as a means or aid
   - instrumental, subservient

See also: helpful, implement

• unseal
• unsealed
• unseamanlike
• unseamed
• unsearchable
• unseasonable
• unseasonableness
• unseasonably
• unseasoned
• unseat
• unseaworthy
• unsectarian
• unsecure
• unsecured
• unsecured bond
• unseductive
• unseeable
• unseeded
• unseeing
• unseeingly
• unseemliness
• unseemly
• unseen
• unsegmented
• unsegregated