Lousy (adjective) — بائس: Very bad, poor in quality, or unwell; informal. Originally meaning infested with lice. Below are 8 words with a similar meaning; the linked ones have full GL Dictionary entries with their meaning in Arabic.
Extremely bad, unpleasant, or shocking; also used informally for a large degree of something undesirable
Decayed or gone bad; very bad.
Extremely bad or unpleasant; causing or involving great suffering, fear, or unhappiness; inspiring dread or fear; terrible in degree or extent
Very unhappy or uncomfortable.
Badly made or done.
terriblepoorrubbish