straightway adverb 2noun 1forms 1 adverb2 •(nonstandard) Directly.Those who continually prefer to stir up waters find that they create only a whirlpool and are carried around in circles rather than progressing straightway. — 1983 •(old-fashioned) Synonym of straightaway or straight away (“at once, immediately”)."Thou now shalt drive her to her mother's straightway." — 1828 noun1 •A straight section of a racetrack. formsstraightways