What does accelerative mean?
"Accelerative" is a formal adjective describing something that tends to cause acceleration — that is, something that increases speed or the rate at which a process unfolds. It appears most often in technical and scientific contexts: physicists may speak of an accelerative force acting on a body, and analysts might describe an accelerative trend in economic growth or technological change. The word derives from the Latin "celer," meaning swift, the same root behind "accelerate" and "celerity." Because it is relatively uncommon in ordinary speech, "accelerative" carries a precise, somewhat scholarly tone; writers typically reach for it when they want to characterize a cause or tendency rather than a completed action. Its antonymic counterpart is "decelerative," which likewise remains largely confined to technical registers.
adjectiveTending to cause or produce acceleration; having the effect of increasing speed or rate of progress.
- Tending to cause or increase speed or rate of progress; producing acceleration.
"The rocket's accelerative thrust pushed the crew back into their seats."
"The engineers fitted the sled with an accelerative booster for the final stretch."
"Critics argued the policy had an accelerative effect on inflation."
Hidden inside "accelerative" is the Latin "celer," meaning swift — the same root that gives us "celerity" and even the vegetable celery, named for its fast-growing stalks.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of accelerative
"Accelerative" comes from the Latin verb "accelerare," formed from "ad-" (toward) plus "celer" (swift), via the Late Latin adjectival suffix "-ivus." English adopted the related verb "accelerate" in the early 16th century, with "accelerative" emerging shortly afterward as its adjectival derivative. It shares its root with "celerity" (swiftness) and, more distantly, with words borrowed from the same Latin source in other European languages.
How accelerative is actually used
"Accelerative" is a formal, technical adjective, found chiefly in scientific and engineering writing (physics, aerospace) and in analytical prose about processes that speed up. It is rare in everyday conversation, where speakers prefer "accelerating" or simply "faster."
Easily confused with accelerative
"Accelerated" describes something that has already been sped up, while "accelerative" describes something that has the quality of causing acceleration.
An "accelerator" is a noun denoting a device, agent, or pedal that speeds something up, whereas "accelerative" is an adjective describing a tendency to accelerate.