ultrafast
/ʌl.trə.fæst/
ADJECTIVE
1. Extremely fast or very short in duration
Moving, operating, or occurring at an exceptionally high speed or within an extremely short period of time, particularly in scientific contexts involving femtosecond or picosecond timescales.
1.1. Internet and data transmission
Used to describe internet connections, networks, and data transmission systems that operate at exceptionally high speeds, allowing information to be transferred with minimal delay.
Synonyms
Antonyms
- slow
- sluggish
- poky
- crawling
Examples
- The new internet connection promises ultrafast speeds for seamless streaming and gaming.
- The company invested in ultrafast network infrastructure to improve data transmission.
Related Words
- bandwidth
- broadband
- data transfer
- network speed
- latency
- connectivity
1.2. Transportation and physical movement
Used to describe trains, vehicles, machines, or moving objects that travel or operate at exceptionally high speeds.
Synonyms
- high-speed
- blistering
- breakneck
- fleet
- swift
- rapid
- speedy
Antonyms
- slow
- sluggish
- leisurely
- plodding
- crawling
Examples
- The ultrafast train completed the journey in half the time of traditional rail services.
- The vehicle was designed for ultrafast travel on specially engineered tracks.
Related Words
- acceleration
- velocity
- transportation
- locomotion
- racing
- high-speed rail
1.3. Scientific processes and technology
Used to describe extremely rapid physical, chemical, or technological processes, especially those occurring over femtosecond or picosecond timescales, as well as equipment designed to capture or study them.
Synonyms
- ultrarapid
- lightning-fast
- rapid
- accelerated
- high-speed
Antonyms
Examples
- The scientific experiment relied on an ultrafast laser system to study rapid chemical reactions.
- Researchers used ultrafast spectroscopy to observe molecular changes occurring within femtoseconds.
Related Words
- femtosecond
- picosecond
- laser
- reaction time
- molecular dynamics
- time resolution
- scientific imaging
1.4. Photography and image capture
Used to describe cameras, autofocus systems, and imaging equipment that respond or operate at exceptionally high speeds, enabling them to capture fast-moving subjects or fleeting moments.
Synonyms
- high-speed
- rapid
- swift
- speedy
- lightning-fast
Antonyms
- slow
- sluggish
- delayed
Examples
- The camera's ultrafast autofocus captured every moment with precision and clarity.
- The photographer used an ultrafast camera to capture the movement of a flying bird.
Related Words
- autofocus
- shutter speed
- high-speed photography
- frame rate
- image capture
- motion tracking
1.5. Delivery and time-sensitive services
Used to describe services that complete tasks, process requests, or deliver goods in exceptionally short periods of time.
Synonyms
Antonyms
Examples
- The company introduced an ultrafast delivery service for urgent orders.
- Customers can choose ultrafast shipping when they need their purchases delivered quickly.
Related Words
- express delivery
- dispatch
- turnaround time
- logistics
- urgent orders
- service speed