Sentence:  At her invitation he outlined for her the succeeding chapters with terse military <WSD>accuracy </WSD>; and what she liked best and best understood was avoidance of that false modesty which condescends, turning technicality into pabulum. 
Meaning of the word marked with <WSD> tags:  The state of being accurate; being free from mistakes, this exemption arising from carefulness; exactness; correctness