PDQ air line all at once all together apace at a blow at a stroke at once at one blow at one jump at one stroke at one swoop at one time away axis beeline chord decisively diagonal diameter direct direct line directly directrix edge expeditiously first forthwith great-circle course immediate immediately in a hurry in no time instanter instantly irreversible normal now on the instant on the spot one-way per saltum perpendicular pretty damned quick promptly pronto quickly radius radius vector right away right line right now right off secant segment shortcut side simultaneously smartly speedily straight straight course straight line straight stretch straightforward straightway streamline subito summarily swiftly tangent then and there this minute this very minute transversal unbroken undeviating unidirectional uninterrupted uno saltu unswerving vector with all speed without delay without further delay