unavailingly

However, having applied unavailingly at a third door, which led into a “utility room,” and a fourth, the door to the kitchen, she rejoined her father, who said, “Maybe they’re asleep.”

Having besieged the city of Troy unavailingly for 10 years, the Greeks built an enormous wooden horse which they filled with elite soldiers.

The propellers were now virtually helices--whirling screws that strove valiantly but unavailingly to lift the huge bulk of the airship in an almost vertical direction.

At the second cockcrow she tried to get into the coffin, and unavailingly begged him to take out the cross.

At length the remorseless waves dashed unavailingly beneath the rising ground where stood the trembling fugitives.