adj.
- no longer produced or used; out of date.
- Biology less developed than formerly or in a related species; rudimentary; vestigial.
v.
chiefly US cause (a product or idea) to become obsolete by replacing it with something new.
Derivative
- obsoletely adv.
- obsoleteness n.
- obsoletism n.
Etymology
C16: from L. obsoletus ‘grown old, worn out’, past part. of obsolescere ‘fall into disuse’.
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