1. Impossible to achieve
   - unachievable, unattainable, undoable, unrealisable [Brit]

See also: impossible

• mistake
• mistaken
• mistakenly
• mistaking
• Mister
• mistflower
• mistily
• mistime
• mistiming
• mistiness
• mistitle
• mistle thrush
• mistletoe
• mistletoe cactus
• mistletoe family
• mistletoe fig
• mistletoe rubber plant
• mistletoe thrush
• mistral
• mistranslate
• mistranslation
• mistreat
• mistreated
• mistreatment
• mistress