Definition of onliness in English:

onliness

(also onlyness)

noun

  • 1The fact or condition of being alone; solitariness, solitude.

  • 2The fact or quality of being the only one of a kind; singularity, uniqueness; specifically the fact of being an only child.

Origin

Late Middle English; earliest use found in The Wycliffite Bible (later version). From only + -ness.

Pronunciation

onliness

/ˈəʊnlɪnɪs/