"A noble reserve of bearing that cannot be mistaken" means…

"A constant and inherently noticeable outward manifestation of personality and attitude possessing outstanding or regal qualities with regard to superiority of mind, character, ideals and morals with sufficient held in reserve (retained or held over or set aside or set apart) to reinforce the constancy of its capacity and value."

Copyright © 2008, S. J. Wickham. All Rights Reserved Worldwide.

Inspiration drawn regarding this vision of character is from a quote of A.W. Tozer's.

NOBLE
1 a: possessing outstanding qualities : illustrious
b: famous , notable 2: of high birth or exalted rank : aristocratic3 a: possessing very high or excellent qualities or properties b: very good or excellent4: grand or impressive especially in appearance 5: possessing, characterized by, or arising from superiority of mind or character or of ideals or morals : lofty 6: chemically inert or inactive especially toward oxygen — compare base 6a

RESERVE
1 a: to hold in reserve : keep back b: to set aside (part of the consecrated elements) at the Eucharist for future use c: to retain or hold over to a future time or place : defer d: to make legal reservation of2: to set or have set aside or apart

BEARING
1: the manner in which one bears or comports oneself 2 a: the act, power, or time of bringing forth offspring or fruit b: a product of bearing : crop3 a: an object, surface, or point that supports b: a machine part in which another part (as a journal or pin) turns or slides4: a figure borne on a heraldic field5: pressure , thrust6 a: the situation or horizontal direction of one point with respect to another or to the compass b: a determination of position cplural : comprehension of one's position, environment, or situation d: relation , connection ; also : purport7: the part of a structural member that rests on its supports

synonyms
bearing , deportment , demeanor , mien , manner , carriage mean the outward manifestation of personality or attitude. bearing is the most general of these words but now usually implies characteristic posture .
deportment suggests actions or behavior as formed by breeding or training . demeanor suggests one's attitude toward others as expressed in outward behavior . mien is a literary term referring both to bearing and demeanor . manner implies characteristic or customary way of moving and gesturing and addressing others . carriage applies chiefly to habitual posture in standing or walking .