SPINELESS

adj. 1 Technical invertebrate There are more species of spineless creatures than those with internal backbones 2 weak, feeble, flabby, irresolute, weak-willed, indecisive, ineffectual, ineffective, impotent, powerless After her reign, any king would appear spineless 3 cowardly, dastardly, pusillanimous, timorous, lily-livered, white-livered, craven, fearful, timid, spiritless, squeamish, Colloq yellow, chicken-hearted, chicken, yellow-bellied, wimpish She said you were spineless because you refused to go into the lions' cage