Answer:

chronic

Answer	Crossword Clue
CHRONIC	Longtime
CHRONIC	Recurring
CHRONIC	Constant

CHRONIC	Not acute
CHRONIC	Habitual.
CHRONIC	Long-lasting.
CHRONIC	Prolonged
CHRONIC	Persistent
CHRONIC	Constant, as a liar
CHRONIC	Habitual

Crossword

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