The term 'art sufficient' points to a state of being well-equipped or sufficiently prepared in the context of creativity or aesthetics. The antonyms for this expression could be 'art deficient,' 'artless,' 'uncreative,' 'uninspired,' 'unimaginative,' or 'unskilled.' While art sufficiency paints a picture of an individual who is confident and adept in their artistic expression, art deficiency, on the other hand, describes a feeling of inadequacy, lack of creativity, and lower artistic ability. Hence, it is vital to continue working on one's skills and stay inspired to enhance the artistic abilities and remain 'art sufficient.