say it: uhn-dur-di-VEL-uhp
underdevelop is a verb meaning "process (a film or photographic plate) less than the required time or in an ineffective solution or at an insufficiently high temperature". It carries one recorded sense.
process (a film or photographic plate) less than the required time or in an ineffective solution or at an insufficiently high temperature
“These photos are underdeveloped”
photography
Forms marked are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for underdevelop come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.