definitions

ultrafast

[ uhl-truh-fast, -fahst ]
/ ˌʌl trəˈfæst, -ˈfɑst /
|

adjective

extremely fast: ultrafast computers.

Nearby words

ultraclean, ultraconservative, ultracrepidarian, ultracritical, ultradian, ultrafast, ultrafiche, ultrafilter, ultrafiltrate, ultrafiltration, ultrahigh

Origin of ultrafast

ultra- + fast1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for ultrafast

  • Stanton paused imperceptibly before answering, while his ultrafast mind considered the problem and arrived at a decision.

    Anything You Can Do|Gordon Randall Garrett

  • Stanton paused imperceptibly before answering, while his ultrafast mind considered the problem before arriving at a decision.

    Anything You Can Do ...|Gordon Randall Garrett

British Dictionary definitions for ultrafast

ultrafast

/ (ˈʌltrəˌfɑːst) /

adjective

extremely fastan ultrafast internet connection
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012