Vocabulary—Antonyms MCQ (adverbs of frequency and their opposites for exam-level English): Choose the most suitable antonym of ‘‘RARELY’’ from the options provided; focus on frequency contrast (infrequent vs. frequent).

Given data

• Word: rarely = infrequently, seldom.
• Options: Hardly, Definitely, Frequently, Periodically.

Concept/Approach
We need the direct opposite in terms of how often. ‘‘Rarely’’ contrasts with ‘‘frequently’’ (often).

Option analysis
Hardly: almost not; aligns with rarity—near-synonym. ❌Definitely: adverb of certainty, not frequency. ❌Frequently: often; high frequency—true antonym. ✔️Periodically: at intervals; does not guarantee high frequency. ❌

Examples
‘‘She rarely travels by train’’ ↔ ‘‘She frequently travels by train.’’

Common pitfalls

• Mistaking manner/certainty adverbs (‘‘definitely’’) for frequency adverbs.
• Picking ‘‘periodically’’ which implies regularity, not necessarily frequency.

Final Answer
Frequently