spineless
/ˈspaɪnlɪs/adjective
1
- having no spine or backbone; invertebrate无脊柱的。
1.1
- figurative (of a person) lacking energy or resolution; weak and purposeless〈喻〉（人）没骨气的; 软弱的：
a spineless coward.
一个软弱的懦夫。
2
- (of an animal or plant) lacking spines（动物, 植物）无刺的：
spineless forms of prickly pear have been selected.
无刺型仙人果已被挑选出来。
派生词