in good health; sound in body and mind. Are you well? He is not a well man. Synonyms: hearty, hale, healthy Antonyms: sick, ill satisfactory, pleasing, or good., WELL definition: 1. in a good way, to a high or satisfactory standard: 2. very much, to a great degree, or…. Learn more., The Pennsylvania Groundwater Information System holds hundreds of thousands of water well records and more than 2,000 spring records, making it an important source of groundwater, water well, and spring data., You say well to express your surprise or anger at something that someone has just said or done., Definition of well adverb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more., In a good or satisfactory condition; favorable; comfortable. Things are well with us..