Synonyms for Suddenness:

• n.

  •abruptness (noun)
  • abruptness.
  •suddenness (noun)
  • trice,
  • heartbeat,
  • haste,
  • flash,
  • quickness,
  • immediacy,
  • twinkling,
  • instantaneousness.
  •surprise (noun)
  • jolt,
  • kick,
  • eureka,
  • disappointment,
  • unexpected,
  • disillusion,
  • portent,
  • prodigy,
  • shock,
  • wonder,
  • stupefaction,
  • incredulity,
  • amazement,
  • awe,
  • thunderbolts,
  • astonishment,
  • bewilderment,
  • attack,
  • bombshell,
  • eye-openers,
  • rarity,
  • wonderment,
  • whammy,
  • marvel,
  • miscalculation,
  • phenomenon,
  • godsend,
  • curiosity,
  • bombshells,
  • curveball,
  • revelation,
  • epiphanies,
  • miracle,
  • start,
  • thunderbolt,
  • Astoundment,
  • unforeseen,
  • fortune,
  • consternation,
  • eye-opener,
  • epiphany.

• Other synonyms:

  •Other relevant words:
  • briskness,
  • temerity,
  • expedition,
  • celerity,
  • impulsiveness,
  • activity,
  • despatch,
  • furiousness,
  • impetuosity,
  • fleetness,
  • impatience,
  • steepness,
  • precipitance,
  • brusqueness,
  • swiftness,
  • suddenly,
  • Instantaneity,
  • changeableness,
  • hurriedness,
  • precipitancy,
  • rashness,
  • expeditiousness,
  • truncation,
  • shortness,
  • lack,
  • recklessness,
  • promptitude,
  • sudden,
  • punctuality,
  • speed,
  • brevity,
  • rapidity,
  • velocity,
  • slope,
  • abrupt,
  • dispatch,
  • impetuousness,
  • promptness,
  • timeliness,
  • hastiness,
  • Inexpectation,
  • gruffness,
  • ruggedness,
  • hotheadedness,
  • spontaneity,
  • precipitousness,
  • hurry,
  • unexpectedness,
  • alacrity,
  • feverishness,
  • curtness,
  • precipitation,
  • gradient,
  • Speediness,
  • precipitateness.

Antonyms for Suddenness:

• n.

  • surprise
    expectation, indifference, calmness, composure, happiness, coolness.