lousy

Concise Oxford English Dictionary © 2008 Oxford University Press:
lousy /ˈlaʊzi/

▶adjective (lousier, lousiest)

• 1 informal very poor or bad.

• 2 infested with lice.

  ■ (lousy with) informal teeming with (something undesirable).

– derivatives
lousily adverb,
lousiness noun.