All 3 Uses of

inferior
in
Blink, by Malcolm Gladwell

For the last twenty years, Coke has gone head-to-head with Pepsi with a product that taste tests say is inferior, and Coke is still the number one soft drink in the world.†
Chpt 5 *

inferior = (adjective) of low quality, or of lower quality or rank than something else OR (more rarely as a noun) a person of lower rank or status

And, like the experts, the students thought that Acme and Sorrell Ridge were markedly inferior to the others, although the experts thought Sorrell Ridge was worse than Acme, while the students had the order the other way around.†
Chpt 5

When the normal participants looked at the chair, however, they used a completely different and less powerful part of the brain—the inferior temporal gyrus—which is normally reserved for objects.†
Chpt 6

Definitions:

(1) (inferior)
of low quality, or of lower quality or rank than something else -- sometimes used as a noun to refer to a person of lower rank or status
(2) (meaning too rare to warrant focus)
meaning too rare to warrant focus:

Less commonly, specialized senses include:
- anatomy and botany -- a lower position on a body or plant (or pointed downward)
- typography -- a character that drops beneath a printing line (such as with subscript)
- astronomy -- having an orbit relative to the sun that is lower than earth's (making Mercury and Venus inferior planets)