Between prescience and imagination the borderline is ill defined.
The struggle then between the bounding heart and the depressing care renders our impressions of grief vague and ill defined.
Nevertheless, an ill defined, yet none the less real, fear was steadily taking possession of me.
An ill defined drab-gray median line from throat to pubic region.
The bello ideale, ill defined and ill understood, smiled upon me with all its flattering and illusory charms.
His duties in this capacity were vast and ill defined, and his responsibility exceedingly heavy.
Bars on the thighs are ill defined or absent in the members of the marnockii and part of the modestus groups.
Before its publication, great numbers of ordinarily humane people had a general, ill defined horror of slavery.
It was emphasized at the beginning of this chapter that the boundaries between the three were hazy and ill defined.
As has been urged so many times before, these types have boundaries that are hazy and ill defined; they overlap in many cases.