Select the most appropriate ANTONYM of the underlined word.

We lived a very frugal life during our childhood.

Select the most appropriate ANTONYM of the underlined word to fill in the blank. 

While most friends persuaded him to choose the career, there were a few who ________ him from doing so.

Select the most appropriate ANTONYM of the underlined word in the given sentence. 

One may accomplish many things by a little effort.

Select the most appropriate ANTONYM of the underlined word.

The professor's lectures are very conventional and so tedious.