spineless Meaning, Definition & Usage

1. adjective satellite weak in willpower, courage or vitality
   gutless; wishy-washy; namby-pamby.
   
2. adjective lacking a backbone or spinal column
   invertebrate.
   
   • worms are an example of invertebrate animals
3. adjective lacking spiny processes
   
   • spineless fins
4. adjective satellite lacking thorns
   thornless.
   

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