1. Not asked for
   "unasked advice"
   - unsolicited

See also: unrequested

• Umbelliferae
• umbelliferous
• umbelliferous plant
• umbelliform
• Umbellularia
• Umbellularia californica
• umber
• umbilical
• umbilical cord
• umbilical hernia
• umbilical vein
• umbilical vesicle
• umbilicate
• umbilicus
• umbles
• umbo
• umbra
• umbrage
• umbrageous
• umbrella
• umbrella arum
• umbrella bird
• umbrella fern
• umbrella magnolia
• umbrella pine