obsolete

adjective

No longer in use.

adjective

Outmoded in design, style, or construction.

adjective

Vestigial or rudimentary, especially in comparison with related or ancestral species, as the tailbone of an ape. Used of an organ or other part of an organism.

transitive verb

To cause to become obsolete.

In botany, notingan organ which is rudimentary or scarcely apparent.

To become obsolete; pass out of use.

To make obsolete; render disused.

Gone out of use; no longer in use: as, an obsolete word; an obsolete custom; an obsolete law. Abbreviated obsolete

In descriptive zoöl., indistinct; not clearly or sharply marked; applied to colors, faded, dim: as, an obsolete purple; applied to ornaments or organs, very imperfectly developed, hardly perceptible: as, obsolete striæ, spines, ocelli.

intransitive verb

To become obsolete; to go out of use.