Sentence:  It is interesting that , although the percentage of married students is not appreciably higher at Brooklyn than elsewhere - about 30 per cent of the women and 25 per cent of the men in the graduating class - the <WSD>anxiety</WSD> of the unmarried has puffed up the estimate . 
Meaning of the word marked with <WSD> tags:  a vague unpleasant emotion that is experienced in anticipation of some (usually ill-defined) misfortune