[Edward64]

Originally Posted by Lathum

Maybe Edward can find a definition for you!

Happy to help the cause on having structured discussions, hope wiki is good enough.

Textualism - Wikipedia

Textualism is a formalist theory in which the interpretation of the law is primarily based on the ordinary meaning of the legal text, where no consideration is given to non-textual sources, such as intention of the law when passed, the problem it was intended to remedy, or significant questions regarding the justice or rectitude of the law.[1]

The textualist will "look at the statutory structure and hear the words as they would sound in the mind of a skilled, objectively reasonable user of words."[2] The textualist thus does not give weight to legislative history materials when attempting to ascertain the meaning of a text. Textualism is often erroneously conflated with originalism, and was advocated by United States Supreme Court Justices such as Hugo Black and Antonin Scalia; the latter staked out his claim in his 1997 Tanner Lecture: "[it] is the law that governs, not the intent of the lawgiver."[3] Oliver Wendell Holmes Jr., although not a textualist himself, well-captured this philosophy, and its rejection of intentionalism: "We ask, not what this man meant, but what those words would mean in the mouth of a normal speaker of English, using them in the circumstances in which they were used ... We do not inquire what the legislature meant; we ask only what the statutes mean."[4]

Textualist judges have contended, with much practical impact, that courts should not treat committee reports or sponsors' statements as authoritative evidence of legislative intent. These judges base their resistance to that interpretive practice on two major premises: first, that a 535-member legislature has no "genuine" collective intent concerning the proper resolution of statutory ambiguity (and that, even if it did, there would be no reliable basis for equating the views of a committee or sponsor with the "intent" of Congress as a whole); second, that giving weight to legislative history offends the constitutionally mandated process of bicameralism and presentment.

— John F. Manning, "Textualism as a Nondelegation Doctrine", 97 Colum. L. Rev. 673, 1997, JSTOR 1123360
Strict constructionism is often misused by laypersons and critics as a synonym for textualism. Nevertheless, although a textualist could be a strict constructionist, these are distinctive views. To illustrate this, we may quote Justice Scalia, who warns that "[t]extualism should not be confused with so-called strict constructionism, a degraded form of textualism that brings the whole philosophy into disrepute. I am not a strict constructionist, and no one ought to be... A text should not be construed strictly, and it should not be construed leniently; it should be construed reasonably, to contain all that it fairly means."[5] Similarly, textualism should not be confused with the "plain meaning" approach, a simpler theory used prominently by the Burger Court in cases such as Tennessee Valley Authority v. Hill, which looked to the dictionary definitions of words, without reference to common public understanding or context.

EDIT: not that it was an ask, but I can't judge the degrees or nuances of textualism.