Dick repeated his question, unobservant of its first effect.
The subtle is so often the obvious that to be unobservant is a social duty.
To the most unobservant it was evident now that a storm was in the making.
From their position they could see all that went on about them, yet be quite hidden from the unobservant.
Don Estevan was not unobservant of this by-play that was ...