arbitrarymodel

noun
UK /ˈɑː.bɪ.trə.ri ˈmɒd.əl/
US /ˈɑːr.bɪ.trer.i ˈmɑː.dəl/

A model that someone picks just because they want to, not because of a special rule.

The teacher used an arbitrary model of a volcano for the science fair.


OTHER MEANINGS

2. A computer model built with settings chosen by the maker rather than by data.

The game used an arbitrary model to decide how fast the cars go.

3. A rule or example that is picked without a clear reason.

Their arbitrary model for picking teams made everyone confused.

4. A pretend version of something made however the maker likes.

She drew an arbitrary model of a house with a round door.