Duration & Permanence Vocabulary

lasting for a very short time

“Fame on social media is often ephemeral—here today, gone tomorrow.”

lasting only for a short time; impermanent

“The transient nature of youth makes it all the more precious.”

lasting for a very short time; passing swiftly

“She caught only a fleeting glimpse of the rare bird.”

lasting for a very short time; brief

“His momentary hesitation cost him the race.”

soon passing out of sight, memory, or existence

“The evanescent morning mist dissolved as the sun rose.”

not permanent; temporary

“All earthly pleasures are transitory.”

lasting for an indefinite time; enduring

“The perennial debate over nature versus nurture continues.”

never ending or changing; occurring repeatedly

“They lived in perpetual fear of discovery.”

eternal and unchanging; everlasting

“The philosopher spoke of sempiternal truths that transcend time.”

unchanging over time; permanent

“The laws of physics are immutable.”

making marks that cannot be removed; unforgettable

“The war left an indelible impression on an entire generation.”

lasting over a period of time; durable

“Their enduring friendship survived decades of separation.”