I. bruis‧ing1 /ˈbruːzɪŋ/
noun [uncountable] purple or brown marks that you get on your skin where you have fallen, been hit etc
bruising to/on
She suffered severe bruising to her arms and legs. [TahlilGaran] Dictionary of Contemporary English ▲
II. bruising2 adjective difficult and unpleasant, and leaving you feeling tired or emotionally harmed:
a bruising contest [TahlilGaran] Dictionary of Contemporary English ▲