1. Foolish; totally unsound
   - crazy, half-baked, screwball

See also: impractical

• deconstruct
• deconstruction
• deconstructionism
• deconstructionist
• deconstructivism
• decontaminate
• decontamination
• decontrol
• decor
• decorate
• decorated
• decoration
• Decoration Day
• decorative
• decoratively
• decorativeness
• decorator
• decorous
• decorously
• decorousness
• decorticate
• decortication
• decorum
• decouple
• decoy