Answer:

mighty

Answer	Crossword Clue
MIGHTY	Powerful
MIGHTY	Descriptor for Casey
MIGHTY	Very, colloquially

MIGHTY	Extremely: Colloq.
MIGHTY	Great.
MIGHTY	Very: Colloq.
MIGHTY	Potent.
MIGHTY	Like a Titan
MIGHTY	Like the Mississippi
MIGHTY	Descriptor for a superhero
MIGHTY	Herculean

Crossword

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