Слово "plausible". Англо-русский словарь Мюллера

If in any way she felt convinced that Mrs Leidner was spoiling her husbands life, then the deep unacknowledged jealousy far down in her would leap at the chance of a plausible motive and give itself full rein.

And it winds up sometimes with things that are plausible but simply not true.

"And yet a far more plausible explanation is that some other organization has taken control of the Illuminati brand and is using it for their own purposes."

Cancer seemed the most plausible."

Goldstein was delivering his usual venomous attack upon the doctrines of the Party--an attack so exaggerated and perverse that a child should have been able to see through it, and yet just plausible enough to fill one with an alarmed feeling that other people, less level-headed than oneself, might be taken in by it.

Some people who had lost by him called him a vicious man; but he regarded horse-dealing as the finest of the arts, and might have argued plausibly that it had nothing to do with morality.