From Longman Dictionary of Contemporary Englishbonelessbone‧less /ˈbəʊnləs $ ˈboʊn-/ adjective boneless meat or fish has had the bones taken out
Examples from the Corpus
boneless• The average Vadinamian looks like an over-sized larva, boneless and segmented.• Her neck grew long and boneless, and was suddenly unable to hold up her heavy head.• Smaller boneless lamb cuts include best end neck fillets and steaks from the leg or loin. 