Definition of insufficient in English:

insufficient

adjective

  • Not enough; inadequate:

    ‘there was insufficient evidence to convict him’
    • ‘Anything less and he would have insufficient time to settle into the job.’
    • ‘So far there has been insufficient evidence to link financially any of the visits to a particular member.’
    • ‘Tough laws are insufficient to find a solution to such a terrible scourge.’
    • ‘I think the amount of police officers is insufficient, I think we need loads more.’
    • ‘The plant could then be converted for other uses, seeing as there is insufficient demand for Rover cars.’
    • ‘These causes might be anything from insufficient training to inadequate technology.’
    • ‘Have houses prices too low, and there'll be insufficient investment in the area.’
    • ‘Greig added that some minor roads in rural areas might have to be shut down if there are insufficient funds to fix them.’
    • ‘That was arguably too prescriptive and pedagogic with insufficient human interest.’
    • ‘He was charged with murder in 1997 but the case was dropped due to insufficient evidence.’
    • ‘The only complaint about the Royal Bolton is insufficient parking facilities!’
    • ‘In military terms, striking at insurgents and terrorists is necessary but insufficient.’
    • ‘It's caused by an insufficient level of insulin, a glucose regulating hormone.’
    • ‘However, that leaves insufficient time to organise live coverage for Saturday.’
    • ‘It strikes me as incredible that insufficient thought and planning was given to such a major activity.’
    • ‘The report found many examples of good work but said insufficient priority was being given to the issue.’
    • ‘My offence, so far as I could tell, was to show insufficient respect to cabinet ministers.’
    • ‘Now they have been informed that beds are available but staffing levels are insufficient to take him.’
    • ‘It is thought the amount of smoke created would also have been insufficient to cause the man's death.’
    • ‘However a review document produced by the group warns that current funding is insufficient.’
    inadequate, not enough, too little
    too few, too small, deficient, poor, scant, scanty
    scarce, sparse, short, in short supply, at a premium
    lacking, wanting
    paltry, meagre, niggardly
    skimpy, sketchy, incomplete, restricted, limited
    measly, pathetic, piddling
    exiguous
    View synonyms

Origin

Late Middle English (in the sense ‘incapable, incompetent’): via Old French from late Latin insufficient- not sufficing, from in- not + Latin sufficere (see suffice).

Pronunciation

insufficient

/ɪnsəˈfɪʃ(ə)nt/