1. Filled with shade
   "cool umbrageous woodlands"
   - shady, shadowed, shadowy 
2. Angered at something unjust or wrong
   "umbrageous at the loss of their territory"
   - indignant, incensed, outraged

See also: angry, shaded, umbrage

• architeuthis
• architrave
• archival
• archive
• archives
• archivist
• archivolt
• archly
• archness
• archon
• Archosargus
• Archosargus probatocephalus
• Archosargus rhomboidalis
• archosaur
• Archosauria
• archosaurian
• archosaurian reptile
• archpriest
• archway
• Arcidae
• arciform
• arcminute
• arco
• arcsec
• arcsecant