Not essential or necessary; not important or pertinent; not decisive; of no substantial consequence; without weight; of no material significance.
adj. a commonly heard objection to introducing evidence in a trial on the ground that it had nothing substantial to do with the case or any issue in the case. It can also apply to any matter, (such as an argument or complaint) in a lawsuit which has no bearing on the issues to be decided in a trial. The public is often surprised at what is immaterial, such as references to a person's character or bad deeds in other situations. (See: irrelevant)
IMMATERIAL. What is not essential; unimportant what is not requisite; what
is informal; as, an immaterial averment, an immaterial issue.
2. When a witness deposes to something immaterial, which is false,
although he is guilty of perjury in foro conscientiae, he cannot be punished
for perjury. 2 Russ. on Cr. 521; 1 Hawk. b. 1, c. 69, s. 8; Bac. Ab.
Perjury, A.