undercook
verb /ˌʌndəˈkʊk/
  /ˌʌndərˈkʊk/
[usually passive]Verb Forms
| present simple I / you / we / they undercook |    /ˌʌndəˈkʊk/   /ˌʌndərˈkʊk/  | 
| he / she / it undercooks |    /ˌʌndəˈkʊks/   /ˌʌndərˈkʊks/  | 
| past simple undercooked |    /ˌʌndəˈkʊkt/   /ˌʌndərˈkʊkt/  | 
| past participle undercooked |    /ˌʌndəˈkʊkt/   /ˌʌndərˈkʊkt/  | 
| -ing form undercooking |    /ˌʌndəˈkʊkɪŋ/   /ˌʌndərˈkʊkɪŋ/  | 
- undercook something to not cook something for long enough, with the result that it is not ready to eat