ultrafast is a valid English word

Scrabble validity: valid ( international - Sowpods, US - Twl06 )
iScramble validity: invalid
QuickWords validity: invalid

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Meanings

Adjective (COMPARABLE)

Comparative Superlative
more ultrafast most ultrafast
    Very fast, or of very short duration; especially concerning events that take place in femtosecond or picosecond timescales.

ultrafast is a Scrabble valid word


ultrafast is not an iScramble valid word


ultrafast is not an QuickWords valid word


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Same letters words (Anagrams)


Same letters plus one


Same letters minus one