1‘it may be difficult for you to make an instantaneous response to what is said’
immediate, instant, on-the-spot, prompt, direct, swift, speedy, rapid, quick, expeditious, express, lightning
sudden, hurried, hasty, precipitate, abrupt
informal snappy, p.d.q., p.d.q. pretty damn quick
literary fleet, rathe
We take a look at several popular, though confusing, punctuation marks.