Antonyms of adj obsolescent

1 sense of obsolescent

Sense 1
obsolescent -- (becoming obsolete)

INDIRECT (VIA noncurrent) -> current -- (occurring in or belonging to the present time; "current events"; "the current topic"; "current negotiations"; "current psychoanalytic theories"; "the ship's current position")

Similarity of adj obsolescent

1 sense of obsolescent

Sense 1
obsolescent -- (becoming obsolete)
       => noncurrent (vs. current) -- (not current or belonging to the present time)