"straightaway" in the noun sense
1. straightaway, straight
a straight segment of a roadway or racecourse
"straightaway" in the adjective sense
1. immediate, prompt, quick, straightaway
performed with little or no delay
"an immediate reply to my letter"
"a prompt reply"
"was quick to respond"
"a straightaway denial"
"straightaway" in the adverb sense
1. immediately, instantly, straightaway, straight off, directly, now, right away, at once, forthwith, like a shot
without delay or hesitation with no time intervening
"he answered immediately"
"found an answer straightaway"
"an official accused of dishonesty should be suspended forthwith"
"Come here now!"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License