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under-

prefix
 
 
/ʌn.dər-/ US  /-dɚ-/

Definition

not enough or not done as well or as much as is necessary: undercooked potatoes underprivileged children We're all overworked and underpaid. His boss says he's under-performing (= not doing as well as he should) at work. → Compare over-Scarce, inadequate and not enoughLacking things below: underwear an underpassUnder and below
(Definition of under- prefix from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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