soberest

/S OW1 B ER0 IH0 S T/
adjective
  1. 1

    Not drunk; not intoxicated

  2. 2

    Not given to excessive drinking of alcohol

    โ€œ1890, John Charles, The Godly, Righteous, And Sober Lifeโ€

  3. 3

    Moderate; realistic; serious; not playful; not passionate; cool; self-controlled

  4. 4

    Dull; not bright or colorful

  5. 5

    Subdued; solemn; grave

  6. 6

    Poor; feeble

Antonyms

Source: https://en.wiktionary.org/wiki/sober, https://en.wiktionary.org/wiki/soberest