All 3 Uses

obsolete
in
Cat's Eye
(Auto-generated)

That word, plastered, on the brink of obsolescence, indicates to me what sort of an event that was.†
p. 17.9 *

obsolescence = no longer in general use because it was replaced by something better
There are pyramids of imported chocolates, an ice cream counter, aisles and aisles of fancy cookies and canned gourmet food, ticking away like little clocks toward the obsolescence dates stamped on their packages.†
p. 165.3
One that was nearly obsolete.†
p. 371.2

Definitions:

(1) (obsolete)
no longer in general use because it was replaced by something better
(2) (meaning too rare to warrant focus)