Adjective eternal has 3 senses
- ageless, eternal, everlasting, perpetual, unending, unceasing - continuing forever or indefinitely; "the ageless themes of love and revenge"; "eternal truths"; "life everlasting"; "hell's perpetual fires"; "the unending bliss of heaven"
Antonyms: impermanent, temporary (indirect, via permanent)
- everlasting, eternal, lasting, eonian, aeonian - lasting for an indefinitely long period of time
Antonym: mortal (indirect, via immortal)
- endless, eternal, interminable - tiresomely long; seemingly without end; "endless debates"; "an endless conversation"; "the wait seemed eternal"; "eternal quarreling"; "an interminable sermon"
Antonym: short (indirect, via long)
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