TIRESOME SORT is a term used to describe someone who is dull, annoying, and difficult to be around. The crossword solutions for this term are BORE (4 letters), NAG (3 letters), and PILL (4 letters). BORE means to be dull and uninteresting, NAG means to constantly criticize or complain, and PILL means to be unpleasant or irritating. All three words together describe someone who is tiresome and difficult to be around.