Definitions of insufficiency
  1. noun
    a lack of competence
    “pointed out the insufficiencies in my report”
    synonyms: inadequacy
    see moresee less
    type of:
    failing, weakness
    a flaw or weak point
  2. noun
    (pathology) inability of a bodily part or organ to function normally
    see moresee less
    cardiac insufficiency, coronary insufficiency
    inadequate blood flow to the heart muscles; can cause angina pectoris
    type of:
    inability, unfitness
    lacking the power to perform
  3. noun
    lack of an adequate quantity or number
    synonyms: deficiency, inadequacy
    see moresee less
    adequacy, sufficiency
    the quality of being sufficient for the end in view
    show 10 types...
    hide 10 types...
    exiguity, leanness, meagerness, meagreness, poorness, scantiness, scantness
    the quality of being meager
    deficit, shortage, shortfall
    the property of being an amount by which something is less than expected or required
    scarceness, scarcity
    a small and inadequate amount
    the quality of being slight or inadequate
    meagerness or poorness connoted by a superfluity of water (in a literary style as well as in a food)
    restricted to bare necessities
    oxygen deficit
    temporary oxygen shortage in cells resulting from strenuous exercise
    spareness, sparseness, sparsity, thinness
    the property of being scanty or scattered; lacking denseness
    dearth, paucity
    an insufficient quantity or number
    infrequency, rareness, rarity
    noteworthy scarcity
    type of:
    the relative magnitude of something with reference to a criterion
Word Family

Test prep from the experts

Boost your test score with programs developed by’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.


  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week


  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week