slowers

Things that decelerate

Slowers are things that reduce speed or cause delay.

Traffic slowers include speed bumps and narrow lanes.

A person can be a slower—someone who holds back progress or takes their time: The slowers in the group lagged behind on the trail.

The word is uncommon, with "slowdowns" or specific terms usually preferred.

hindrance

obstacle

Something blocking the way

inhibition · restraint · constraint · limitation · interference · encumbrance · deterrent · drag · complication · friction

deliberate

methodical

Organized and deliberate

careful · systematic · measured · prudent · purposeful · circumspect · scrupulous · painstaking · gradual · incremental

traffic

congestion

Excessive accumulation causing blockage

tailback · backup · roadwork · construction · signals · speed bumps · school zones · crosswalks · intersections · rush hour

pace

leisurely

Done without urgency

languid · dawdling · sauntering · ambling · strolling · moseying · plodding · shuffling · loping · relaxed

calmness

serenity

Undisturbed mental quietude

quietude · restfulness · placidity · composure · repose · gentleness · harmony · contentment · ease · meditation

Opposites
speed effect

slowersaccelerators

Things that speed up

speeders · quickeners · hasteners · boosters · catalysts

progress/momentum

slowersfacilitators

Those who aid progress

enablers · expediters · advancers · promoters · drivers

Phrases
Family

slower, slowest, slowed

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