Partner u need to read a dictionary. Words have MORE than one meaning. I don't like journalists but I think this one is justified.
sober
Pronunciation: 'sO-b&r
Function: adjective
Inflected Form(s): so·ber·er  /-b&r-&r/; so·ber·est  /-b(&-)r&st/
Etymology: Middle English sobre, from Middle French, from Latin sobrius; akin to Latin ebrius drunk
1 a : sparing in the use of food and drink : ABSTEMIOUS b : not addicted to intoxicating drink c : not drunk
2 : marked by sedate or gravely or earnestly thoughtful character or demeanor
3 : UNHURRIED, CALM
4 : marked by temperance, moderation, or seriousness5 : subdued in tone or color