Definition from Wiktionary, the free dictionary
ultraportable (not comparable)
- Extremely portable
2007 June 7, Michel Marriott, “To Appeal to Women, Too, Gadgets Go Beyond ‘Cute’ and ‘Pink’”, in New York Times:
- There are more subtle touches, too, like the wider spacing of the keys on a new Sony ultraportable computer notebook that goes on sale next week.
ultraportable (plural ultraportables)
- (computing) An ultraportable computer.