hastener

One who expedites

A hastener is someone or something that speeds up a process or urges greater speed.

The word is straightforward but uncommon—you're more likely to encounter the verb hasten than this agent noun: She was a hastener of change in the organization.

In older usage, a hastener was also a metal screen placed before a fire to speed cooking.

catalyst

accelerator

Speed control mechanism

expediter · promoter · stimulator · activator · precipitator · instigator · spur · impetus · driver · propellant

speed

velocity

Directed rate of motion

quickness · acceleration · dash · sprint · hurry · rush · zip · pace · celerity · alacrity

urgency

deadline

Time limit for completion

rush · time-sensitive · imminent · critical · pressing · dire · imperative · expedite · precipitate · alarm

impatience

restlessness

State of unease

antsiness · fidgeting · agitation · frustration · edginess · exasperation · antsy · itching · yearning · craving

firestarter

accelerant

Combustion-intensifying substance

fuel · charcoal · paper · bellows · fan · blower · draft · oxygen · stoking · poker

efficiency

productivity

Output relative to input

systematization · expeditiousness · economy · shortcut · fast-track · automation · delegation · prioritization · template · checklist

Opposites
effect on speed or timing

hastenerdelayer

One who postpones action

retarder · decelerator · staller · hinderer · slowdown

Family

hasten, hastening, hastened, hastens, hasteners

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Everyday, not technical · Rated G