Слово "unfair". Англо-русский словарь Мюллера

And it's the unfairness of our learning being unlocked

is when employees feel that they're being treated unfairly.

And unfair."

It therefore happened that this venial fault of my uncle's came to be pretty well understood in time, and an unfair advantage was taken of it; the students laid wait for him in dangerous places, and when he began to stumble, loud was the laughter, which is not in good taste, not even in Germans.