Select the most appropriate ANTONYM of the given word.

Approximately

Exactly

The antonym of the word approximately is exactly.

• Approximately means "close to but not quite exact."
• Exactly means "precisely or correctly."

So, the opposite of something being approximately correct would be for it to be exactly correct.

The other words do not have opposite meanings to approximately.

• Vaguely means "in a way that is not clear or specific."
• Hourly means "every hour."
• Truly means "in a genuine or sincere way."