reality-based

The compound adjective "reality-based" is a modern construction, emerging prominently in the late 20th and early 21st centuries within political and strategic discourse. It is formed by combining the noun "reality," which traces back to the Latin res (thing, matter), with the participial adjective "based," from the Greek basis (foundation). The term's logic is deliberately oppositional, contrasting a foundation in observable facts ("reality") with approaches grounded in theory, dogma, or unfounded optimism. Its rise in usage reflects a cultural emphasis on pragmatism and empirical validation, particularly in policy-making and journalism, where it serves as a shorthand for asserting practical, fact-driven reasoning.

Structure: reality (state of being real) + based (having as a foundation) reality: From Latin realitas (the quality of being real), from realis (real), from res (thing, matter). Functions as a noun root specifying the domain of "real things." based: From the past participle of the English verb base, from Old French baser (to found, build), from Latin basis (foundation, pedestal), from Greek basis (a stepping, step, base). Functions as an adjective-forming suffix indicating "founded upon or derived from."