Definitions of borderline
  1. noun
    a line that indicates a boundary
    synonyms: border, boundary line, delimitation, mete
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    Green Line
    the border marking the boundaries of the land that Israel won in its 1948 war of independence
    Line of Control
    a 450-mile line that is supposed to indicate the boundary between the part of Kashmir controlled by India and the part controlled by Pakistan
    Mason and Dixon's line
    the boundary between Maryland and Pennsylvania; symbolic dividing line between North and South before the American Civil War
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    circuit, circumference
    the boundary line encompassing an area or object
    fence line
    a boundary line created by a fence
    property line
    the boundary line between two pieces of property
    state boundary, state line
    the boundary between two states
    type of:
    bound, boundary, bounds
    the line or plane indicating the limit or extent of something
  2. adjective
    of questionable or minimal quality
    borderline grades”
    synonyms: marginal
    minimal, minimum
    the least possible
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