unprofitable

英[ʌn'prɒfɪtəb(ə)l] 美[ʌn'prɑfɪtəbl]

1. producing little or no profit or gain;

"deposits abandoned by mining companies as unprofitable"

2. not worth using

3. without profit or reward;

"let us have no part in profitless quarrels"- D.D.Eisenhower

"How weary, flat, stale, and unprofitable / Seem to me all the uses of this world"- Shakespeare