C2 Vocabulary Exercise 01

The professor’s lecture was so _______ that only a few students could understand the complex theories he was discussing.

• abundant

• abstruse

• accessible

Answer explanation

Difficult to understand; obscure.

The speech was so _______ that it failed to inspire anyone, as it was full of overused phrases and ideas.

• banal

• profound

• intriguing

Answer explanation

So lacking in originality as to be obvious and boring.

The charity was founded by a _______ individual who wanted to help underprivileged children.

• benevolent

• malevolent

• insensitive

Answer explanation

Well-meaning and kindly.

The fans grew _______ as their team scored the winning goal, cheering and shouting loudly.

• boisterous

• subdued

• melancholy

Answer explanation

Noisy, energetic, and cheerful.

The spies held a _______ meeting to discuss sensitive information that couldn't be revealed publicly.

• public

• clandestine

• unimportant

Answer explanation

Kept secret or done secretively.

The chemicals were found to have a _______ effect on the environment, harming wildlife.

• beneficial

• deleterious

• insignificant

Answer explanation

Causing harm or damage.

The beauty of the cherry blossoms is _______; they bloom for only a few days each year.

• unchanging

• eternal

• ephemeral

Answer explanation

Lasting for a very short time.

The illness was _______ at first, with mild symptoms that gradually worsened over time.

• insidious

• instant

• harmless

Answer explanation

Proceeding in a gradual, subtle way, but with harmful effects.

After a long day, she felt too _______ to go for a run, preferring to relax instead.

• energetic

• languid

• animated

Answer explanation

Displaying or having a disinclination for physical exertion or effort.

The professor’s explanations were so _______ that students often lost interest due to the excessive details.

• engaging

• pedantic

• concise

Answer explanation

Excessively concerned with minor details or rules; overscrupulous.