Of short duration or transitory

Permanent

Of long duration

Eternal

ameliorate

aggravate

intensify

worsen

Slow and deliberate response

Lack of enthusiasm or willingness

Indifference or apathy towards action

Cheerful readiness or promptness in response or action.

Noisy and annoying

Introverted and calm

Fond of company; sociable.

Shy and reserved

Attend a party in casual clothing and without accessories

Attend a party in a flashy sports car and a diamond-encrusted watch

Dress in simple attire for a formal event

Drive a modest car to a high-profile event

Ubiquity

Exclusivity

Scarcity

Omnipresence

transient

perpetual

evanescent

fleeting

Improve means to improve a negative feeling.

Exacerbate means to worsen a problem, a negative situation, or a feeling.

Mitigate means to improve a situation.

Relieve means to worsen a situation.

Lack of enthusiasm

Slow response

Indifference

Cheerful disposition or promptness

The quality of being sociable, outgoing, and enjoying the company of others.

The quality of being indifferent towards others and not seeking social connections.

The quality of being reserved and not enjoying the company of others.

The quality of being introverted and avoiding social interactions.

Someone who drives a luxury car just to show off their wealth and status.

Someone who dresses plainly to blend in with others

Someone who drives a modest car to save money

Someone who chooses a practical phone instead of a flashy one

only found in specific areas

limited to one location

rarely seen

present, appearing, or found everywhere

temporary

fleeting

evanescent

ephemeral

Decrease the volume of something

Increase the volume, intensity, or magnitude of something.

Reduce the magnitude of something

Maintain the same level of intensity