Semitri- (semitrisexual, semitriromantic, semitrisensual, semitriplatonic, semitrialterous...) is the semi- version of tri- or the tri version of semibi-. It can be interpreted as having attraction to 1,5 genders, meaning more than one but less than 2, such as in a parosexuality, or being attracted to one gender but you're attracted to another gender fragmentedly or questioningly, as in a way some used to misuse polysexuality or in a bicurious way. It could be a -flexible orientation. And anything else imaginable.