1. [verb] Simple past tense and past participle of crook
2. [adjective] Not straight; having one or more bends or angles.
3. [adjective] Set at an angle; not vertical or square.
4. [adjective] (figuratively) Dishonest or illegal; corrupt.
5. [adjective] Having or marked by bends or angles; not straight or aligned; 'crooked country roads'; 'crooked teeth'.
6. [adjective] Not straight; dishonest or immoral or evasive.
7. [adjective] Irregular in shape or outline; 'asymmetrical features'; 'a dress with a crooked hemline'.
8. [adjective] Having the back and shoulders rounded; not erect; 'a little oldish misshapen stooping woman'.