nietideale
Nietideale is a Dutch adjective meaning not ideal or deviating from an ideal model. The term is formed from niet (not) and ideale (ideal) and is used in contexts where simplifying assumptions or perfect conditions are not met. It signals that a description, model, or system only approximates an ideal case and that deviations should be considered.
The concept appears across multiple disciplines to flag non-ideal behavior or conditions. In physics and chemistry,
Orthography and nuance: the compound is commonly written with a hyphen (niet-ideale) in Dutch, but you may