disingenuous

pg. 123-124

disingenuous -- lacking in frankness, not straightforward or candid, insincere. Pretending to be unaware or unsophisticated.

"Perhaps if the thought of his life then, of his sister's life now, still had the power to tighten his throat and sour the air (another cigarette lit might clear it), then was it [sic.] disingenuous not to say so?"

the character is wondering whether he should mention his escape from a small town in his memoirs;