obtuse

  1. lacking in insight or discernment

    Synonyms : purblind
    Examples :
    • too obtuse to grasp the implications of his behavior
  2. slow to learn or understand; lacking intellectual acuity

    Synonyms : dense, dim, dull, dumb, slow
    Examples :
    • he was either normally stupid or being deliberately obtuse
  3. of an angle; between 90 and 180 degrees

    Antonyms : acute
  4. (of a leaf shape) rounded at the apex

obstreperous

  1. boisterously and noisily aggressive

    Examples :
    • kept up an obstreperous clamor
  2. noisily and stubbornly defiant

    Examples :
    • obstreperous boys

obsolete

  1. no longer in use

    Synonyms : disused
    Examples :
    • obsolete words

obsession

  1. an irrational motive for performing trivial or repetitive actions, even against your will

    Synonyms : compulsion
    Type Of : irrational motive
  2. an unhealthy and compulsive preoccupation with something or someone

    Synonyms : fixation
    Type Of : preoccupation

obsequious

  1. attempting to win favor from influential people by flattery

    Synonyms : bootlicking, fawning, sycophantic, toadyish
  2. attentive in an ingratiating or servile manner

    Examples :
    • obsequious shop assistants

obscure

  1. not drawing attention

    Synonyms : unnoticeable
    Examples :
    • an obscure flaw
  2. make undecipherable or imperceptible by obscuring or concealing

    Synonyms : blot out, hide, obliterate, veil
    Type Of : modify, change, alter
  3. not famous or acclaimed

    Synonyms : unknown, unsung
    Examples :
    • an obscure family
  4. not clearly expressed or understood

    Synonyms : vague
    Examples :
    • an obscure turn of phrase
    • an impulse to go off and fight certain obscure battles of his own spirit
  5. make unclear, indistinct, or blurred

    Synonyms : blur, confuse, obnubilate
    Type Of : modify, change, alter
  6. make obscure or unclear

    Synonyms : bedim, overcloud
    Type Of : alter, modify, change
    Examples :
    • The distinction was obscured
  7. make less visible or unclear

    Synonyms : becloud, befog, cloud, fog, haze over, mist, obnubilate
    Type Of : hide, conceal
    Examples :
    • The stars are obscured by the clouds
    • the big elm tree obscures our view of the valley
  8. marked by difficulty of style or expression

    Synonyms : dark
    Examples :
    • those who do not appreciate Kafka's work say his style is obscure
  9. remote and separate physically or socially

    Synonyms : apart, isolated
    Examples :
    • an obscure village
  10. difficult to find

    Synonyms : hidden
    Examples :
    • an obscure retreat
  11. reduce a vowel to a neutral one, such as a schwa

    Type Of : reduce

oblivious

  1. failing to keep in mind

    Synonyms : forgetful
    Examples :
    • oblivious old age
  2. (followed by `to' or `of') lacking conscious awareness of

    Synonyms : unmindful
    Examples :
    • oblivious of the mounting pressures for political reform
    • oblivious to the risks she ran

obliterate

  1. make undecipherable or imperceptible by obscuring or concealing

    Synonyms : blot out, hide, obscure, veil
    Type Of : change, alter, modify
  2. mark for deletion, rub off, or erase

    Synonyms : kill, wipe out
    Type Of : take away, take out
  3. remove completely from recognition or memory

    Synonyms : efface
    Type Of : blur, slur, dim
  4. reduced to nothingness

    Synonyms : blotted out, obliterated
  5. do away with completely, without leaving a trace

    Type Of : get rid of, do away with, extinguish, eliminate

objective

  1. serving as or indicating the object of a verb or of certain prepositions and used for certain other purposes

    Synonyms : accusative
    Examples :
    • objective case
  2. undistorted by emotion or personal bias; based on observable phenomena

    Synonyms : nonsubjective
    Antonyms : subjective
    Examples :
    • an objective appraisal
    • objective evidence
  3. the goal intended to be attained (and which is believed to be attainable)

    Synonyms : aim, object, target
    Type Of : goal, end
  4. the lens or system of lenses in a telescope or microscope that is nearest the object being viewed

    Synonyms : object glass, object lens, objective lens
    Type Of : lens system, lense, lens
  5. belonging to immediate experience of actual things or events

    Examples :
    • objective benefits
    • an objective example
    • there is no objective evidence of anything of the kind
  6. emphasizing or expressing things as perceived without distortion of personal feelings or interpretation

    Examples :
    • objective art

obfuscate

  1. make obscure or unclear

    Antonyms : clarify
    Type Of : alter, change, modify