Judicious writing means writing that shows discernment, prudence, and sensibleness; it is writing that shows mental, grammatical, and stylistic discipline on the part of the author as well as respect for the reader’s intelligence and sensibility. In practical terms, judicious writing is good, understandable, level-headed writing.
The opposite of judicious writing is tendentious writing, which is writing marked by strong personal, social, racial, religious, political, or ideological bias; it is an exposition that’s more interested in giving vent to what’s in the mind of the writer than in what the reader wants or needs to know. In practical terms, tendentious writing is bad, prejudiced, sometimes muddle-headed writing.
This is really all I can say about the subject.