Spineless invertebrate Synonyms

Definitions for Spineless

(adjective) lacking strength of will or character
(adjective) having or showing a shameful lack of courage
(adjective) weak in willpower, courage or vitality

SI abbreviation

SI is an abbreviation for Spineless Invertebrate

What does SI stand for?

SI stands for "Spineless Invertebrate"

Invertebrate replaced

spineless coward

spineless wimp

Definitions for Invertebrate

(adjective) lacking strength of will or character
(noun) any animal lacking a backbone or notochord; the term is not used as a scientific classification
(adjective) lacking a backbone or spinal column