spineless
(spīn′lis)
adjective
- having no backbone; invertebrate
- having a weak or flexible backbone
- lacking courage, resistance, willpower, etc.
- without spines, or thorny processes
See spineless in American Heritage Dictionary 4
adjective- Lacking courage or willpower.
- Biology
a. Having no spiny processes.
b. Lacking a spinal column; invertebrate.
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