Answer:

ELUSIVE

Answer	Crossword Clue
ELUSIVE	Hard to pin down
ELUSIVE	Slippery
ELUSIVE	Just out of reach

ELUSIVE	Hard to nail down
ELUSIVE	Hard to get
ELUSIVE	Not easily caught
ELUSIVE	Continually slipping away
ELUSIVE	Eely
ELUSIVE	Hard to catch
ELUSIVE	Hard to define
ELUSIVE	Impalpable.

ELUSIVE	Baffling.
ELUSIVE	Slippery.
ELUSIVE	Slippery as an eel.
ELUSIVE	Tricksy.
ELUSIVE	Hard to pin down.
ELUSIVE	Hard to catch.
ELUSIVE	Hard to define.
ELUSIVE	Baffling

ELUSIVE	Shifty
ELUSIVE	Like a greased pig
ELUSIVE	Hard to describe
ELUSIVE	Hard to grasp
ELUSIVE	Difficult to grasp
ELUSIVE	Close to unattainable
ELUSIVE	Hard to understand or identify