Select the most appropriate antonym to the underlined word in the sentence given below:

The judge appreciated the young speaker for his IMMACULATE style of speaking.

Select the word opposite in meaning to the given word: Laconic

From the given options, select the OPPOSITE in meaning to the given word:

"Perennial"

Fill in the blank with the antonym of the underlined word in the given sentence:

Our Mathematics teacher was known for her ______ attitude, always losing her calm under pressure.

Identify the word that is opposite in meaning to the word: SAGACIOUS.

Select the correct antonym of the following word from the given options:

Niggardly

Identify the word opposite in meaning to the underlined word.

The organizers were banking upon an immaculate performance from the star.