1. Of or relating to or formed by trees
   "an arborous roof"
   - arborical, arboreal, arborary

See also: arbor [N. Amer, Austral], tree

• ill-considered
• ill-defined
• ill-disposed
• ill-dressed
• ill-equipped
• ill-famed
• ill-fated
• ill-favored
• ill-favoured
• ill-fed
• ill-fitting
• ill-formed
• ill-gotten
• ill-humored
• ill-humoured
• ill-informed
• ill-judged
• ill-mannered
• ill-natured
• ill-omened
• ill-proportioned
• ill-scented
• ill-shapen
• ill-smelling
• ill-sorted