furtive

  1. secret and sly or sordid

    Synonyms : backstair, backstairs
    Examples :
    • furtive behavior
  2. marked by quiet and caution and secrecy; taking pains to avoid being observed

    Synonyms : sneak, sneaky, stealthy, surreptitious
    Examples :
    • a furtive manner

furrow

  1. a slight depression or fold in the smoothness of a surface

    Synonyms : crease, crinkle, line, seam, wrinkle
    Type Of : impression, imprint, depression
  2. make wrinkled or creased

    Synonyms : crease, wrinkle
    Type Of : fold up, turn up, fold
    Examples :
    • furrow one's brow
  3. hollow out in the form of a furrow or groove

    Synonyms : groove, rut
    Type Of : delve, cut into, dig, turn over
    Examples :
    • furrow soil
  4. cut a furrow into a columns

    Synonyms : chamfer, chase
    Type Of : cut
  5. a long shallow trench in the ground (especially one made by a plow)

    Type Of : trench

frugal

  1. avoiding waste

    Synonyms : economical, scotch, sparing, stinting
    Examples :
    • a frugal farmer
    • a frugal lunch

frivolous

  1. not serious in content or attitude or behavior

    Antonyms : serious
    Examples :
    • a frivolous novel
    • a frivolous remark
    • a frivolous young woman

fraudulent

  1. intended to deceive

    Synonyms : deceitful, fallacious
    Examples :
    • a fraudulent scheme to escape paying taxes

fractious

  1. stubbornly resistant to authority or control

    Synonyms : recalcitrant, refractory
    Examples :
    • a fractious animal that would not submit to the harness
  2. easily irritated or annoyed

    Synonyms : cranky, irritable, nettlesome, peckish, peevish, pettish, petulant, scratchy, techy, testy, tetchy
    Examples :
    • an incorrigibly fractious young man
  3. unpredictably difficult in operation; likely to be troublesome

    Examples :
    • rockets were much too fractious to be tested near thickly populated areas
    • fractious components of a communication system

fortuitous

  1. having no cause or apparent cause

    Synonyms : causeless, uncaused
    Examples :
    • fortuitous encounters--strange accidents of fortune
  2. occurring by happy chance

    Examples :
    • profits were enhanced by a fortuitous drop in the cost of raw materials

fortitude

  1. strength of mind that enables one to endure adversity with courage

    Type Of : bravery, courage, courageousness, natural virtue, braveness

forensic

  1. used or applied in the investigation and establishment of facts or evidence in a court of law

    Examples :
    • forensic photograph
    • forensic ballistics
  2. of, relating to, or used in public debate or argument

fly-by-night

  1. a debtor who flees to avoid paying

    Type Of : debitor, debtor
  2. ephemeral

    Examples :
    • the symphony is no fly-by-night venture
  3. (of businesses and businessmen) untrustworthy or undependable

    Examples :
    • a fly-by-night operation