Choose one of the following options that means the opposite of the given word:
Quiescent

Choose one of the following options that means the opposite of the given word:
Vivacious

In the following question,choose the word which is the exact $OPPOSITE$ of the given word.
$STRINGENT$

Select the word or phrase which is closest to the $OPPOSITE$ in meaning of the highlighted word or phrase.
The inhabitants of the island were $barbarians$.

Choose one of the following options that means the opposite of the given word:
Impecunious

Select the word or phrase which is closest to the $OPPOSITE$ in meaning of the highlighted word or phrase:
He is the most $prudent$ person $I$ have ever come across.