1. not having or showing interest

- an uninterested spectator

Similar word(s): apathetic, indifferent, blase, bored, dismissive, benumbed, dulled

2. having no care or interest in knowing

- she appeared totally uninterested

Similar word(s): incurious

Sentences with uninterested as an adjective:

- I was uninterested in the TV program, so I read a book instead.