commonest

Most often seen

Commonest is the superlative form of common, meaning most widespread, frequent, or ordinary.

The commonest mistake is forgetting to save your work.

Though grammatically correct, *most common* often sounds more natural in American English, while *commonest* remains standard in British usage.

prevalent

widespread

Existing across many places

ubiquitous · rife · extensive · broad · general · mainstream · sweeping · far-reaching · wide-ranging · large-scale

frequent

recurring

Happening repeatedly over time

regular · repetitive · chronic · endemic · perennial · continual · routine · customary · prevailing · perpetual

ordinary

mundane

Commonplace, lacking excitement

routine · banal · prosaic · unremarkable · plain · simple · garden-variety · conventional · average · mediocre

Opposites
frequency/prevalence

commonestrarest

Least frequently occurring

scarcest

social status/refinement

commonestnoblest

Superlatively high-minded

classiest · poshest

ordinariness/distinction

commoneststrangest

Most unusual or unfamiliar

weirdest · oddest

Family

commoner, commoners

Familiarity
Top 200,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G