Someone affected, as by a disease.
"The local health department is offering free flu shots to anyone affected by recent respiratory illnesses in our neighborhood."
In plain English: An affected person acts in a way that is not genuine just to impress others.
"The affected person felt dizzy after standing up too quickly."
Usage: Use "affected" only when referring to a person who has been impacted by a specific condition, such as a disease or social change. In most other contexts, it functions as an adjective describing how something feels or acts rather than naming a person.
simple past tense and past participle of affect
"The storm affected our entire neighborhood by causing widespread power outages last night."
In plain English: To affect something means to have an influence on it or cause a change in it.
"The rainy weather affected our plans for a picnic."
Usage: Use affected as the past tense or past participle of affect when describing an action that influences someone or something, such as in "The storm affected our travel plans." Do not use it to mean pretending or acting, which requires the word feigned or pretense.
acted upon; influenced
"The cold weather affected everyone's energy levels by making them feel sluggish and tired."
Influenced or changed by something.
"The cold weather affected her mood, making her feel unusually grumpy all day long."
In plain English: Affected means pretending to be something you are not just to impress other people.
"The cold weather affected everyone in the region, making them wear warm coats."
Usage: Use "affected" as an adjective to describe someone who appears artificial, overly dramatic, or unnatural in their behavior. Do not use it to mean "influenced," as that requires the word to be a past participle functioning as an adjective describing a state of being changed by an external factor.
Derived from the Latin affectus, the past participle of afficere meaning "to do to" or "to influence," the term originally described something done upon someone rather than an internal state. It later evolved in English to denote being influenced by emotion or appearing artificial and unnatural.