- ultraism
- ultraisms
- ultraliberal
- ultralight
- ultralow frequency
- ultramafic
- ultramarathon
- ultramarine
- ultramarine blue
- ultramicrofiche
- ultramicrometer
- ultramicroscope
- ultramicroscopic
- ultramicrotome
- ultramilitant
- ultraminiature
- ultramodern
- ultramontane
- ultramontanes
- ultramontanism
- ultramontanisms
- ultramundane
- ultranationalism
- ultrapure
- ultras