Onlineness refers to the fact of maintaining a constant online presence, in order to be able to instantly react to any new internet developments, no matter how insignificant¹. Onlineness may lead to acute loneliness and pathological syndromes² such as extralineaphobia. 

“网络孤独症”指的是为了能对任何网上的新进展做出及时反应而经常上网，无论有多么无关紧要。这种行为会使人产生极度的孤独感，以及“脱网恐惧感”等病态症状。

 

Onlineness是online和loneliness 的合成词，指上网上得太多，随时看手机刷微博刷朋友圈，可是却越来越孤独。