Timeless is an adjective used to qualify something or someone who is not affected by the passage of time, meaning that it is part of any time or time. One of the synonyms for timeless is timeless.
Regarding etymology, the word timeless is formed by the prefix The, which means "without" and the Latin term temporal which means something "related to time".
On many occasions, this adjective is used to qualify clothing or decoration, meaning it is something that never goes out of style. O antonym timeless is passenger, temporal.
The expression timeless love it reveals a unique love (sometimes described as eternal), which cannot be framed within the concept of time, that is, it does not belong to the present, past or future.
Regarding linguistics and grammar, the adjective timeless refers to a verbal form that does not specify time. The verbal forms considered timeless are the present indicative, the infinitive and the imperative. Ex: The moon revolves around the earth.
See also the meaning of Temporal.