1. Difficult to penetrate; incomprehensible to one of ordinary understanding or knowledge
   "some recondite problem in historiography"
   - abstruse, deep

See also: esoteric, reconditeness

• Cardigan Welsh corgi
• Cardiidae
• cardinal
• Cardinal Bellarmine
• cardinal compass point
• cardinal flower
• cardinal grosbeak
• Cardinal Newman
• cardinal number
• Cardinal Richelieu
• cardinal tetra
• cardinal vein
• cardinal virtue
• cardinalate
• cardinalfish
• Cardinalis cardinalis
• cardinality
• cardinalship
• cardio-
• cardiogenic shock
• cardiogram
• cardiograph
• cardiographic
• cardiography
• cardioid