doesn't age

Grammar usage guide and real-world examples

Focuses more on the enduring quality or relevance of an object or art form

Uses an adjective to describe a permanent state of appearing young or being outside of time

A slightly more colloquial way to express that something maintains its appeal

Shifts focus to the active preservation of youth rather than the absence of aging

An idiomatic expression typically used for people whose appearance has not changed over years

A more poetic and formal way to describe durability or permanence

Emphasizes the keeping of youthful qualities in a metaphorical sense

More descriptive and often used in medical or cosmetic contexts

A highly formal philosophical or scientific term meaning unchanging

A common variant that adds a qualifier, usually regarding the deterioration of quality over time