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.

Option 1 -> serene means calm and peaceful, which is a synonym of calm, not an antonym.

Option 2 -> patient means tolerant and composed, which is similar to calm, not opposite.

Option 3 -> agitated means nervous and anxious, which is the antonym of calm.

Option 4 -> embellished means decorated or exaggerated, unrelated to emotional state.

Hence, Option 3: agitated -> The sentence describes a teacher who "always loses her calm under pressure," so we need an antonym of calm to describe her characteristic attitude. Agitated perfectly captures the opposite of calm, indicating a nervous and restless disposition -> correct