a thin line

a thin line

A very narrow division between two alternatives, one of which is much worse than the other. As a new parent, you learn that there's a thin line between looking out for your child's welfare and being overprotective.
See also: line, thin
Farlex Dictionary of Idioms.
See also:
  • a fine line
  • a fine line between something
  • an arrow in the quiver
  • arrow in the quiver
  • quiver
  • straight and narrow, (walk) the
  • straight and narrow, the
  • the straight and narrow
  • take a middle course
  • follow/steer/take a middle course
References in periodicals archive
"There is a thin line that separates laughter and pain, comedy and tragedy, humor and hurt.