faithfuldecrease

noun
UK /ˈfeɪθfəl dɪˈkriːs/
US /ˈfeɪθfəl dɪˈkris/

A faithful decrease is when something gets smaller in a way that stays true and steady.

The faithfuldecrease in the balloon's size showed the air was slowly leaking out.


OTHER MEANINGS

2. A drop in amount that happens exactly as promised or expected.

The faithfuldecrease in the plant's water use matched the gardener's plan.

3. A person or thing that stays dependable while becoming less.

The old clock's faithfuldecrease in ticking told us its battery was running low.

4. A mathematical pattern where a value goes down in a regular, trustworthy way.

The faithfuldecrease of the numbers 10, 8, 6, 4 showed a clear pattern.