era-defining

Sets the standard

Era-defining describes something so significant it characterizes an entire period: an era-defining album, an era-defining moment in civil rights history.

The term implies lasting cultural or historical impact—not just popular or successful, but fundamentally shaping how a time is remembered and understood.

historic

epochal

Marking a historic division

seminal · iconic · definitive · epoch-making · monumental · once-in-a-lifetime · unforgettable · legendary · momentous · milestone

influential

pioneering

First to explore territory

visionary · trendsetting · game-changing · disruptive · innovative · catalytic · formative · shaping · transformative · precedent-setting

periods

renaissance

Period of renewed vitality

post-war · counterculture · dot-com

Opposites
historical significance

era-definingforgettable

Unlikely to be recalled

insignificant · inconsequential · unremarkable · trivial · negligible

cultural/temporal scope

era-definingfleeting

Passing very quickly

ephemeral · passing · momentary · transient · short-lived

cultural/historical agency

era-definingderivative

Function's rate of change

imitative · unoriginal · cookie-cutter · formulaic · conventional

Family

define, defining, defined, defines, redefine, redefined, redefines, redefining, redefinition

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Abstract · Positive · Everyday, not technical · Rated G