spineless vs spinous

spineless and spinous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
spineless	No	Yes	No	No
spinous	No	Yes	No	No

spineless (adjective)	spinous (adjective)
lacking spiny processes	having spines
lacking a backbone or spinal column	shaped like a spine or thorn
lacking courage or vitality
lacking thorns