昏昏欲睡

Explanation: Groggy, just want to sleep. Described as extremely tired or lack of energy. 　　Usage: Partial official; as predicate, the clause; describe very tired 　　Source: Qing Pu "Strange Jia Feng pheasant": "fall into the Non complex is off, eup unsuccessful, Lang made quite a thought, Suiqu before reading the instructions were strong. Before the arrival of the final chapter, drowsiness, No heart bewildered by their own. " Thesaurus:  simple-minded, Bludger Dull, Bludger E'e, muddle, muddy Chaos, doze, Hu Li blindness, demoralized Antonym Group:  history Arranged in no particular order leave behind, sensible, as clear as noon, as plain as the day, Qingqing vain, lucidity