anticatalyst

Slows chemical processes

An anticatalyst is a substance that slows or inhibits a chemical reaction, the opposite of a catalyst.

Also called a negative catalyst or inhibitor.

The term occasionally appears in figurative use for anything that impedes progress or prevents change: His pessimism was an anticatalyst for the team's momentum.

chemistry

inhibitor

Agent that slows reactions

suppressor · quencher · retardant · neutralizer · stabilizer · binding agent · modulator · regulator · decelerator

hindrance

obstacle

Something blocking the way

obstruction · deterrent · restraint · constraint · limitation · encumbrance · drag · bottleneck · stumbling block · roadblock

suppression

inhibition

Mental check on behavior

containment · prevention · curtailment · discouragement · deterrence · thwarting · blocking · retardation · dampening · smothering

Opposites
chemical reaction effect

anticatalystcatalyst

Agent enabling change

accelerator · promoter · activator · facilitator · enabler

metaphorical change agency

anticatalystcatalyst

Agent enabling change

accelerator · enabler · spark · driving force · impetus

Family

anticatalysts

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Used worldwide · Timeless · Abstract · Rated G