Unparallel
Unparallel is a type of comparative adjective used to describe something that is not parallel to another object or concept. The word was coined in the late 20th century by linguistic scholars exploring the limits of comparative grammar. While the standard comparative form for a word ending in –ly is usually “more” or “less”, unparallel points to situations where similarity cannot be measured along a single dimension. For example, two idiomatic expressions might be unparallel: one may convey ironical humor while the other reveals straightforward sarcasm, and the two cannot be directly stacked against each other for similarity according to standard comparison metrics.
The term appears mainly in advanced studies of semantics, especially in the analysis of metaphoric versus literal
Unparallel is not recognized by major dictionaries, but it can be interpreted by those who keep track