Choose the word which best expresses the meaning of the given word: $Acumen$.

Pick up the one which is most nearly the same in meaning as the word highlighted.
Few teachers have been spared the problem of an $obstreperous$ pupil in the class.

Pick up the one which is most nearly the same in meaning as the word highlighted.
The great artist's life was full of $vicissitudes$.

Pick the word that is most nearly the same in meaning as the highlighted word.
They were totally unaware of the $impending$ disaster.

Choose the word which best expresses the meaning of the given word: $Distort$.

Choose the word which best expresses the meaning of the given word: $Alert$.