Answer:

ENIGMATIC

Answer	Crossword Clue
ENIGMATIC	Cryptic
ENIGMATIC	Hard to read
ENIGMATIC	Hard to figure out

ENIGMATIC	Mysterious
ENIGMATIC	Baffling
ENIGMATIC	Very strange
ENIGMATIC	Puzzling
ENIGMATIC	Puzzling.
ENIGMATIC	Inexplicable.
ENIGMATIC	Like Mona Lisa's smile.
ENIGMATIC	Perplexing.

ENIGMATIC	Sphinxian.
ENIGMATIC	Hard to figure out.
ENIGMATIC	Perplexing
ENIGMATIC	Tough to crack
ENIGMATIC	Tough to figure out

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.