forever; for good; eternally; as long as one likes; indefinitely
Example sentences
彼はいつまでも彼女を愛し続けるだろう。
He will love her forever.
彼はいつまでも好奇心を失わない。いわば永遠の青年だ。
He never loses his curiosity; he is, as it were, an eternal youth.
彼はいつまでも泣き続けた。
He kept on crying.