【Feeling】 , the general term, denotes a partly mental and partly physical, but not primarily sensory, reaction or state that is characterized by an emotional response (as pleasure, pain, attraction, or repulsion). Unless it is qualified or a clue is given in the context, 【feeling】 gives no indication of the nature, the quality, or the intensity of the response.

Often  【feeling】  implies a contrast with judgment and connotes lack of thought.

【Affection】 is applied mainly to such feelings as are also inclinations or likings; the word therefore sometimes suggests desire or striving.

【Emotion】  usually suggests a condition that involves more of the total mental and physical response than does  【feeling】 or implies feelings marked by excitement or agitation.

【Sentiment】 connotes a larger intellectual element in the 【feeling】 than any of the others; it often is applied specifically to an 【emotion】 inspired by an idea. Commonly the word suggests refined, sometimes romantic, occasionally affected or artificial, 【feeling】 .

【Passion】  suggests powerful or controlling 【emotion】 ; more than  【affection】 , it implies urgency of desire (as for possession or revenge).