side effects

NOUN

adverse or unwanted secondary effect

Synonyms

STRONGEST

aftereffect reaction

WEAK

aftermath aftertaste byproduct carryover concomitant corollary leftover offshoot secondary response side issue sidebar spinoff

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

side effects

Despite the global discontent, economists say Chinese authorities are unlikely to allow fast currency appreciation due to the potential for negative side effects.

From The Wall Street Journal ● Sep. 7, 2026

The pharmaceutical company was tangled in a public dispute over the allegedly harmful side effects of Prozac, its popular antidepressant.

From The Wall Street Journal ● Sep. 3, 2026

As I got fitter after my cancer treatment ended doctors gradually reduced my heart medication dosages, but I was still having side effects like a low heart rate and fatigue.

From BBC ● Sep. 2, 2026

The most common side effects of the treatment were rash, diarrhoea, nausea, fatigue and vomiting, the FDA said.

From BBC ● Aug. 26, 2026

Cancer kids are essentially side effects of the relentless mutation that made the diversity of life on earth possible.

From "The Fault in Our Stars" by John Green