WordNet sense 1 (easily hurt):

soft

WordNet sense 2 (physically untoughened):

tender, untoughened

WordNet sense 3 (having or showing or requiring special skill):

skilled

WordNet sense 4 (responsive to physical stimuli):

sensitive

WordNet sense 5 (developed with extreme delicacy and subtlety):

finespun

WordNet sense 6 ((used of persons and their behavior) cultivated and genteel):

refined

WordNet sense 7 (difficult to handle; requiring great tact):

ticklish, touchy

WordNet sense 8 (not easy; requiring great physical or mental effort to accomplish or comprehend or endure):

hard

WordNet sense 9 (easily broken or damaged or destroyed):

frail

WordNet sense 10 (faint and difficult to analyze):

subtle

WordNet sense 11 (vulnerably delicate):

fragile

WordNet sense 12 (characterized by unusual lightness and delicacy):

ethereal

WordNet sense 13 (delicately beautiful):

dainty, exquisite