Synonyms of the word

slowdown

• n. A reduction in speed, or a decrease in the level of production, etc.

delay

• n. A period of time before an event occurs; the act of delaying; procrastination; lingering inactivity.
• v. To put off until a later time; to defer.
• v. To retard; to stop, detain, or hinder, for a time.
• v. (obsolete) To allay; to temper.
• v. (obsolete) To dilute, temper.
• v. (obsolete) To assuage, quench, allay.

holdup

• n. Alternative spelling of hold-up.

lag

• adj. late.
• adj. (obsolete) Last; long-delayed.
• adj. Last made; hence, made of refuse; inferior.
• n. (countable) A gap, a delay; an interval created by something not keeping up; a latency.
• n. (uncountable) Delay; latency.
• n. (Britain, slang, archaic) One sentenced to transportation for a crime.
• n. (Britain, slang) a prisoner, a criminal.
• n. (snooker) A method of deciding which player shall start. Both players simultaneously strike a cue ball…
• n. One who lags; that which comes in last.
• n. The fag-end; the rump; hence, the lowest class.
• n. A stave of a cask, drum, etc.; especially (engineering) one of the narrow boards or staves forming the…
• n. A bird, the greylag.
• v. to fail to keep up (the pace), to fall behind.
• v. to cover (for example, pipes) with felt strips or similar material.
• v. (Britain, slang, archaic) To transport as a punishment for crime.
• v. (transitive) To cause to lag; to slacken.

retardation

• n. The act of retarding or delaying; hindrance.
• n. The extent to which anything is retarded; the result of any retarding or delay; mental, social, or physical…
• n. That which retards; an obstacle; an obstruction.
• n. (physics) Deceleration; reduction in the magnitude of velocity.
• n. (music) A suspension which resolves upwards.