1. Not clear to the understanding
   - enigmatic, enigmatical 
2. Lacking clarity of meaning; causing confusion or perplexity
   "a puzzling statement"
   - confusing, perplexing

1. Be a mystery or bewildering to
   - perplex, vex, stick, get, mystify, baffle, beat, pose, bewilder, flummox, stupefy, nonplus, gravel, amaze, dumbfound 
2. Be uncertain about; think about without fully understanding or being able to decide
   "We puzzled over her sudden departure"

See also: incomprehensible, puzzle out, puzzle over, puzzlement, puzzler, unclear, uncomprehensible

Type of: bedevil, befuddle, chew over, confound, confuse, contemplate, discombobulate, excogitate, fox, fuddle, meditate, mull, mull over, muse, ponder, reflect, ruminate, speculate, think over, throw

Encyclopedia: Puzzle

• hybridisation
• hybridise
• hybridising
• hybridism
• hybridity
• hybridization
• hybridize
• hybridizing
• hybridoma
• hydantoin
• hydathode
• hydatid
• hydatid disease
• hydatid mole
• hydatidiform mole
• hydatidosis
• Hyderabad
• trumpery
• trumpet
• trumpet arch
• trumpet creeper
• trumpet flower
• trumpet honeysuckle
• trumpet section
• trumpet tree