1. Without a basis in reason or fact
   "unfounded suspicions"
   - baseless, groundless, idle, unwarranted, wild

See also: unsupported

• washwoman
• washy
• Waslaw Nijinsky
• wasn't
• wasp
• wasp waist
• wasp-waisted
• waspish
• waspishly
• wasps' nest
• wassail
• wassailer
• Wasserman reaction
• Wassermann
• Wassermann test
• Wassily Kandinski
• Wassily Kandinsky
• Wassily Leontief
• wassock
• wast
• wastage
• waste
• waste disposal unit
• waste material
• waste matter