1. Of fabric that does not wrinkle easily
   - creaseproof, wrinkleproof, crease-resistant

See also: wrinkle

• impairment
• impala
• impala lily
• impale
• impalement
• impalpability
• impalpable
• impalpably
• impanel
• imparipinnate
• imparity
• impart
• impartation
• impartial
• impartiality
• impartially
• imparting
• impassable
• impasse
• impassibility
• impassible
• impassion
• impassionate
• impassioned
• impassive