ultralight

1 of 2

adjective

ul·​tra·​light ˈəl-trə-ˌlīt 

: extremely light in mass or weight

an ultralight alloy

an ultralight pullover

ultralight

2 of 2

noun

: a very light recreational aircraft typically for one person that is powered by a small gasoline engine

Examples of ultralight in a Sentence

Recent Examples on the Web

Adjective

The water-resistant jacket is ultralight to keep you warm and is also thin enough to pack into a suitcase full of souvenirs—definitely a travel-friendly coat that’s worth every penny. —Michelle Tchea, Travel + Leisure, 7 Dec. 2025

The sneaker has an additional 3mm heel-to-toe drop, and provides ultralight cushioning. —Stephanie Osmanski, Better Homes & Gardens, 29 Nov. 2025

Noun

Don't miss these Brown made the jump from an ultralight aircraft timed to cross the sun from McCarthy's viewpoint on the desert floor, creating a silhouette that had to pass through a narrow field of view only a few arcminutes wide. —Josh Dinner, Space.com, 22 Nov. 2025

Burgeon’s Alpha Direct 90 Hoodie uses the fuzzy insulation fabric to make an ultralight, insanely breathable, and surprisingly warm layer for the weight. —Joe Jackson, Outside, 18 Nov. 2025

Word History

First Known Use

Adjective

1974, in the meaning defined above

Noun

1974, in the meaning defined above

Rhymes for ultralight

• acolyte
• aconite
• allanite
• alunite
• amberlite
• ammonite
• amorite
• amphitrite
• analyte
• anchorite
• andesite
• anhydrite

Kids Definition

ultralight

adjective

ul·​tra·​light

ˈəl-trə-ˌlīt

: very light in mass or weight

an ultralight alloy

an ultralight sweater