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TOEIC Link Part 5: averse versus adverse

Averse and adverse look almost identical, but averse describes a person's unwillingness or reluctance, while adverse describes an unfavorable condition or effect. Part 5 tests whether the blank describes someone's attitude or a harmful circumstance.

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TOEIC Link Part 5: averse versus adverse

Averse and adverse are one letter apart and share a Latin root meaning "turned against," so the wrong option slips past a quick read — but Part 5 keeps them apart. Averse means strongly disinclined or unwilling, and it describes a person's feeling. Adverse means unfavorable, harmful, or working against you, and it describes a condition, effect, or circumstance. The item is decided by asking whether the blank describes how someone feels or an unfavorable situation. For the full set of look-alike traps, start with the commonly confused word pairs master index.

The core rule: unwilling person versus unfavorable condition

  • averse (adjective) = feeling strong dislike or reluctance toward something. It nearly always follows a linking verb and pairs with to: The board is averse to taking on more debt. It answers is a person unwilling? Anchor it with averse → allergic (both describe a person's negative reaction, and both take to). It describes people, teams, and their attitudes — someone who is risk-averse does not want risk.
  • adverse (adjective) = unfavorable, negative, or damaging in effect. It sits directly in front of a noun: Adverse weather delayed the shipment. It answers is this condition harmful? Anchor it with adverse → against you; adverse conditions, adverse effects, and adverse reactions all describe circumstances that hurt the outcome. It describes situations, results, and impacts, not feelings.

A quick anchor: averse = an unwilling person (averse to something); adverse = an unfavorable thing (adverse conditions). People are averse; conditions are adverse.

Why Part 5 likes this pair

The two words differ by a single letter and share a root, so a fast reading lets the wrong one pass. The item is decided by the subject and the grammar around the blank: a person plus to points to averse, while a noun describing a harmful condition points to adverse.

Management is not __ to expanding into new markets.

The subject is a person (management) followed by to, so the blank needs averse.

The company reported an __ impact on quarterly earnings.

The blank sits before a noun and describes a harmful effect, so it needs adverse.

Spotting the clue

Check whether the blank describes a person's reluctance or a harmful circumstance:

  • Is the word about someone being unwilling, usually after is / are / was and followed by to? → choose averse (investors are averse to risk, she is not averse to change).
  • Is the word about an unfavorable condition, effect, or result, sitting directly before a noun? → choose adverse (adverse weather, adverse effects, adverse market conditions).

A quick test: is the blank followed by the word to with a person as the subject? Then it is averse. Is the blank followed by a noun like conditions, effects, or impact? Then it is adverse. In TOEIC business scenarios, averse appears in contexts of decision-making and attitude — a company averse to risk. Adverse appears in contexts of weather, market conditions, and consequences — the adverse effects of a delay. For more pairs where meaning turns on context, see the adjective and adverb confusable pairs study guide.

Common Part 5 patterns

TOEIC Part 5 reuses a few frames for this pair. Recognizing them saves seconds on test day:

  • "is / are not __ to" → almost always averse (unwilling person). The director is not averse to new ideas.
  • "__ weather / conditions" → adverse (unfavorable). Adverse conditions forced the closure.
  • "risk-__" → averse. The compound risk-averse describes a cautious person or firm.
  • "__ effect / impact / reaction" → adverse. Anything about a harmful result is adverse.

Notice that averse attaches to a person and takes to (averse to change), while adverse attaches directly to a noun describing a situation (adverse weather, adverse effects). If the subject is a person and to follows, you want averse; if a harmful condition or result is described, you want adverse.

The takeaway

When the blank describes a person who is unwilling — averse to risk, not averse to change, a risk-averse board — the answer is averse, and the giveaway is a human subject with the word to nearby. When the blank describes an unfavorable condition or effect — adverse weather, adverse impact, adverse market conditions — the answer is adverse, and the giveaway is a noun describing something harmful. Keep the reluctant investor and the harmful storm in mind: a person is averse to something, while a condition is adverse to your plans. For one more context-driven trap that TOEIC likes to test, review the commonly confused word pairs master index.