Definition
Perpetual means going on forever, or near enough — from the Latin perpetuus, 'continuous'. A perpetual motion machine would never stop; perpetual snows never melt; a perpetual complainer never lets up. The word can describe the genuinely endless or, with a sigh, the merely relentless. Unlike what is ephemeral and gone in a moment, the perpetual refuses to end; it is the state that simply continues to persist, cycle after cycle, with no final beat.
Examples
- The waterfall is in perpetual motion, day and night, year after year.
- He lives in perpetual fear of being found out.
- The committee seems trapped in a perpetual cycle of meetings that decide nothing.
Collocations
perpetual motion·in perpetual fear·a perpetual cycle·perpetual change
Synonyms
constant·ceaseless·incessant·endless·unending
Antonyms
ephemeral·temporary·fleeting
Word family
perpetually (adverb)·perpetuate (verb)·perpetuity (noun)
In TOEFL & IELTS
TOEFL passages use 'perpetual' for natural cycles and 'perpetuate' (to keep something going) for social patterns — 'perpetuate inequality' is a key collocation. In IELTS Writing, 'a perpetual cycle of…' neatly frames a self-renewing problem. Distinguish the verb 'perpetuate' from the adjective 'perpetual', and keep it opposite to 'ephemeral'.