Слово "indefinite". Англо-русский словарь Мюллера

The whole process seemed to stretch out over a long, indefinite time--weeks, possibly--and the intervals between the sessions might sometimes have been days, sometimes only an hour or two.

A supreme happiness filled my whole body, and we ran together toward a sort of yellow warmth that came from some indefinite place.

Peyote had produced in me, as a post-reaction, a strange kind of physical discomfort. It was an indefinite fear or unhappiness; a melancholy of some sort, which I could not define exactly.

Their luck would hold indefinitely, and they would carry on their intrigue, just like this, for the remainder of their natural lives.

For it is only by reconciling contradictions that power can be retained indefinitely.

And presently the people in this castle will realize that even stun-pistols can't keep on shooting indefinitely here.