(さいそく)

さいそく
noun, no-adjective
fastest
quantity
1. fastest, quickest, top speed
The superlative of fast — the greatest speed among a group. Used for vehicles, athletes, records, and also figuratively for the earliest availability of information or results.
He set a new fastest record.
This car boasts the fastest speed in the world.
Various media outlets competed with each other aiming for the fastest reporting of election results.

Usage

最速(さいそく) functions as a noun or -adjective. It applies to physical speed as well as figurative speed (e.g., the quickest release of information).

In media and internet contexts, 最速(さいそく) often means "earliest" or "first available" — e.g., 最速(さいそく)レビュー (the first/earliest review).

Note: This word is a homophone of 催促(さいそく) (urging, pressing), which has a completely different meaning.

Common collocations