Sentence:  His arm had been giving him some trouble and Rector was not <WSD>enough</WSD> of a medical expert to determine whether it had healed improperly or whether Hino was simply rebelling against the tedious work in the print shop , using the stiffness in his arm as an excuse . 
Meaning of the word marked with <WSD> tags:  as much as necessary; (`plenty' is nonstandard) "I've had plenty, thanks"