1. In an unfaithful undependable unreliable manner
   - unfaithfully, undependably

See also: unreliable

Antonym: reliably

• unseamed
• unsearchable
• unseasonable
• unseasonableness
• unseasonably
• unseasoned
• unseat
• unseaworthy
• unsectarian
• unsecure
• unsecured
• unsecured bond
• unseductive
• unseeable
• unseeded
• unseeing
• unseeingly
• unseemliness
• unseemly
• unseen
• unsegmented
• unsegregated
• unselected
• unselective
• unselfconscious