The antonyms for the phrase "art apprehensive of" are diverse as they range from positive words to negatives. Firstly, the word "confident" can be used to describe an artist who is sure of their abilities and is not afraid to explore new territories. Secondly, "courageous" is the fearlessness to take on art projects and dare to break the rules. Thirdly, "assured" is the confidence in one's abilities to create and innovate in art. Fourthly, "fearless" suggests the absence of fear, reluctance, or hesitation in art. Finally, "brave" suggests the willingness to take on artistic challenges, take risks and persevere.