The term 'with intense feeling' can be summarized by the word 'DEEPLY', which is a six-letter word. DEEPLY is an adverb that is used to describe something that is done with a lot of intensity or emotion. It is often used to describe emotions such as love, sorrow, and joy. It can also be used to describe physical sensations such as pain or pleasure. DEEPLY is often used to emphasize the intensity of a feeling or experience.