How to Use "Affected" in a Sentence

"Affected" pulls double duty in English. As the past tense of "affect," it means influenced or changed by something. As an adjective, it means artificial or pretentious. Knowing which meaning applies depends entirely on context.

"Affected" Meaning Influenced or Changed

This is the most common use. When something has been affected, it has been impacted or altered in some way.

Example sentences:

The drought affected crop yields across the entire region.
Thousands of residents were affected by the power outage.
His grade was affected by several missed assignments.
The new policy affected hiring practices at every branch office.
Coastal communities are most affected by rising sea levels.
Her mood was affected by the gray weather all week.

"Affected" Meaning Pretentious or Artificial

When used as an adjective, "affected" describes behavior, speech, or mannerisms that feel forced or insincere. Someone with an affected accent is putting on a voice that isn't natural to them.

Example sentences:

His affected British accent fooled no one at the dinner party.
She spoke in an affected tone that made the compliment feel hollow.
The critic described the author's prose as affected and overworked.
There was something affected about the way he held his wine glass.
Her laugh seemed affected, as though she was performing for the room.

Affected vs. Effected

This is one of the most common grammar mix-ups. Here's the short version:

Affected (verb) = influenced or changed. "The storm affected travel plans."
Effected (verb) = brought about or caused. "The manager effected a change in policy."

"Effected" means someone made something happen. "Affected" means something was influenced by an outside force. Most of the time, "affected" is the word you want. "Effected" is rarer and more specific.

Affected vs. Unaffected

Adding "un-" flips the meaning:

Affected = changed or influenced by something, or behaving artificially
Unaffected = not changed by something, or behaving naturally and genuinely

"She seemed unaffected by the criticism" means it didn't bother her. "His unaffected manner put everyone at ease" means he was genuine and relaxed.

Tips for Using "Affected" Correctly

Check which meaning you need. Read your sentence aloud. Are you describing something that was changed? Or something that feels fake? The answer tells you which sense of "affected" you're using.

Don't confuse it with "effected." If you mean "influenced," use "affected." If you mean "brought about," use "effected." When in doubt, "affected" is almost always correct.

Watch the preposition. "Affected by" is the standard construction when describing influence. "The town was affected by the flooding" — not "affected from" or "affected with."

Quick Summary

"Affected" most often means something was changed or influenced by an outside factor. Less commonly, it describes behavior that comes across as phony or forced. Both meanings are standard English, so context is your guide.

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