1. In an unattainable manner or to an unattainable degree
   "this house is unattainably expensive"
   - unachievably

See also: unattainable

• unsurprised
• unsurprising
• unsusceptibility
• unsusceptible
• unsuspected
• unsuspecting
• unsuspectingly
• unsuspicious
• unsustainable
• unswayed
• unsweet
• unsweetened
• unswept
• unswerving
• unswervingly
• unsworn
• unsyllabic
• unsyllabled
• unsymbolic
• unsymmetric
• unsymmetrical
• unsymmetrically
• unsympathetic
• unsympathetically
• unsympathising