deflater

One who flattens

A deflater is something or someone that deflates—either literally, by releasing air or gas from an inflated object, or figuratively, by diminishing enthusiasm, pride, or inflated expectations.

The critic was a reliable deflater of pretentious art.

In technical contexts, a deflater may refer to a tool or mechanism designed to release pressure from tires or other pneumatic equipment.

physical

valve

Fluid flow controller

release · pressure · tire · balloon · airbed · bladder · compressor · gauge · nozzle · exhaust

emotional

letdown

Failure to satisfy expectations

buzzkill · killjoy · downer · wet blanket · spoilsport · discouragement · dampener · crusher · sobering · humbling

economic

recession

Prolonged economic decline

contraction · austerity · price drop · market correction · cooling · slowdown · stagnation · decline · shrinkage · disinflation

Opposites
physical inflation/deflation

deflaterinflater

Air-adding device

inflator · pump · air pump · bicycle pump · compressor

psychological/emotional effect

deflaterinflater

Air-adding device

booster · encourager · uplifter · cheerleader · motivator

Family

deflate, deflated, deflation, deflating, deflates, deflator, deflations, deflatable

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Used worldwide · Timeless · Rated G