1. (adj)sober not affected by a chemicalsubstance (especially alcohol)
2. (adj)grave, sedate, sober, solemn dignified and somber in manner or character and committed to keeping promises "a grave God-fearing man"; "a quiet sedate nature"; "as sober as a judge"; "a solemn promise"; "the judge was solemn as he pronounced sentence"
3. (adj)drab, sober, somber, sombre lacking brightness or color; dull "drab faded curtains"; "sober Puritan grey"; "children in somber brown clothes"
4. (verb)unplayful, serious, sober completely lacking in playfulness
5. (verb)sober cause to become sober "A sobering thought"
6. (verb)sober up, sober become more realistic "After thinking about the potential consequences of his plan, he sobered up"
7. (verb)sober up, sober become sober after excessive alcoholconsumption "Keep him in bed until he sobers up"
Definitions of 'sober'
Webster 1913 Dictionary
1. sober temperate in the use of spirituous liquors; habitually temperate; as, a sober man
2. sober not intoxicated or excited by spirituous liquors; as, the sot may at times be sober
3. sober not mad or insane; not wild, visionary, or heated with passion; exercising cool, dispassionate reason; self-controlled; self-possessed
4. sober not proceeding from, or attended with, passion; calm; as, sober judgment; a man in his sober senses
5. sober serious or subdued in demeanor, habit, appearance, or color; solemn; grave; sedate
Definition of sober 
