1. Not capable of being carried out or put into practice
   - impracticable, infeasible, unfeasible

See also: impossible

• discontinuance
• discontinuation
• discontinue
• discontinued
• discontinuity
• discontinuous
• discord
• discordance
• discordancy
• discordant
• discordantly
• discorporate
• discotheque
• discount
• discount business
• discount chain
• discount house
• discount rate
• discount store
• discountenance
• discounter
• discourage
• discouraged
• discouragement
• discouraging