1. Not sustained or maintained by nonmaterial aid
   "unsupported accusations" 
2. Not held up or borne
   "removal of the central post left the roof unsupported"

See also: baseless, groundless, idle, single-handed, strapless, unassisted, unbacked, unbraced, uncorroborated, unfounded, unsubstantiated, unwarranted, wild

Antonym: supported

• isodiametric
• isodynamic
• isoelectronic
• Isoetaceae
• Isoetales
• Isoetes
• isoflurane
• isogamete
• isogamy
• isogloss
• isogon
• isogonal line
• isogone
• isogonic
• isogonic line
• isogram
• isohel
• isohyet
• isolable
• isolate
• isolated
• isolating
• isolation
• isolationism
• isolationist