ultrafast

adjective

ul·​tra·​fast ˌəl-trə-ˈfast 

: extremely or extraordinarily fast

ultrafast trains

ultrafast speeds

an ultrafast wireless connection

Examples of ultrafast in a Sentence

Recent Examples on the Web

The chip is the world’s first processor to compute on both ultrafast data signals and wireless communication signals by harnessing the physics of microwaves. — Georgina Jedikovska, Interesting Engineering, 30 July 2026

Some materials, like semiconductors, can be driven from reflective to transmission quite rapidly (30-100 fs) using ultrafast laser pulses as the switch. — Chris Lee, ArsTechnica, 22 July 2026

Samsung Monitor Deals The 24-inch Odyssey G3 keeps your study desk and gaming setup running smoothly with an ultrafast 180-hertz refresh rate and 1ms response time. — Juhi Wadia, PC Magazine, 22 July 2026

For the first time in over half a century, the United States government is clearing the way for a new generation of ultrafast aircraft to take to the skies. — Andrew Paul, Popular Science, 1 July 2026

Word History

First Known Use

1883, in the meaning defined above

Rhymes for ultrafast

• chloroplast
• epiblast
• fibroblast
• opencast
• overcast
• protoplast
• rebroadcast
• telecast
• trophoblast
• unsurpassed
• aghast
• amassed