Definition of pent-up in English:

pent-up

Syllabification: pent-up
Pronunciation: /pentˈəp
 
/

adjective

Closely confined or held back: pent-up frustrations
More example sentences
  • The pent-up waters, controlled by a sluice gate, were directed past the mill wheel, driving the wooden gears, shafts and millstones.
  • A captured fish or a pent-up mass of water was, by contrast, a private good, something that belonged to someone.
  • It forms a significant bulwark against the tide so that, even on neaps, there is an appreciable movement of water as the pent-up flow sweeps around the headland.
Synonyms
repressed, suppressed, stifled, smothered, restrained, confined, bottled up, held in/back, unvented, kept in check, curbed, bridled

Origin

late 16th century: pent, obsolete past participle of pen2 (verb).

Definition of pent-up in:

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Pronunciation: ˌintərˈnesēn
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destructive to both sides in a conflict