IPA: /əˈluːfnəs/
KK: /əˈlufnəs/
A state of being distant, detached, or uninvolved with others, often resulting in a lack of emotional connection or warmth.
Her aloofness made it difficult for others to connect with her.
Aloofness is derived from 'aloof' (from Middle English 'a-loof', meaning at a distance) and the suffix '-ness' (meaning the state or quality of). The term describes the state of being distant or uninvolved.
Think of someone who is 'at a distance' ('aloof') and how that creates a certain 'quality' or state of being detached.