underexpose
verb /ˌʌndərɪkˈspəʊz/
  /ˌʌndərɪkˈspəʊz/
[usually passive]Verb Forms
| present simple I / you / we / they underexpose |    /ˌʌndərɪkˈspəʊz/   /ˌʌndərɪkˈspəʊz/  | 
| he / she / it underexposes |    /ˌʌndərɪkˈspəʊzɪz/   /ˌʌndərɪkˈspəʊzɪz/  | 
| past simple underexposed |    /ˌʌndərɪkˈspəʊzd/   /ˌʌndərɪkˈspəʊzd/  | 
| past participle underexposed |    /ˌʌndərɪkˈspəʊzd/   /ˌʌndərɪkˈspəʊzd/  | 
| -ing form underexposing |    /ˌʌndərɪkˈspəʊzɪŋ/   /ˌʌndərɪkˈspəʊzɪŋ/  | 
- underexpose something to allow too little light to reach the film when you take a photograph opposite overexpose