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

See also: unsupported

• Leiophyllum
• Leiophyllum buxifolium
• leiotrichous
• leipoa
• Leipoa ocellata
• Leipzig
• Leishmania
• leishmaniasis
• leishmaniasis americana
• leishmaniosis
• leister
• leisure
• leisure time
• leisure wear
• leisured
• leisureliness
• leisurely
• leitmotif
• leitmotiv
• Leitneria
• Leitneria floridana
• Leitneriaceae
• lek
• lekker
• lekvar