Answer:

angriest

Answer	Crossword Clue
ANGRIEST	Most likely to have kittens
ANGRIEST	Superlatively sore
ANGRIEST	Most threatening.

ANGRIEST	Most wrathful
ANGRIEST	Most irate
ANGRIEST	Least at peace
ANGRIEST	Least likely to forgive
ANGRIEST	Sore to the max

Crossword

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