Aromantic flag, 5 horizontal stripes. From top to bottom: green, light green, white, gray, black.

Aromanticism is a romantic orientation characterized by experiencing little to no romantic attraction. The term "aromantic", colloquially shortened to "aro", refers to a person whose romantic orientation is aromanticism.

The opposite of aromanticism is alloromanticism, defined as a romantic orientation in which one experiences romantic love or romantic attraction to others. Some individuals who fall on the aromantic spectrum of identities describe themselves as having experienced romantic love or romantic attraction at some point. Such aromantics may adopt labels for more specific identities on the aromantic spectrum, such as "grayromantic" (romantic attraction rarely experienced or only weakly experienced) or "demiromantic" (only experiencing romantic attraction after a strong emotional bond has been formed with the target). As the experience of romantic attraction is subjective, some aromantic people may find it difficult to determine whether they experience romantic attraction. As such, those who are aromantic may have trouble distinguishing platonic affection from romantic affection. Wikipedia