IPA: /ˈspaɪn.ləs/
KK: /ˈspɪnˌlaɪs/
Describing someone who lacks courage or determination; not strong or assertive.
He was too spineless to stand up for what he believed in.
Spineless → It is formed from "spine" (from Latin *spina*, meaning thorn or spine) and "-less" (meaning without). The word describes someone or something that lacks a spine, metaphorically indicating a lack of courage or determination.
Think of someone who is 'without' ('-less') a 'spine' ('spina') — this helps you remember that 'spineless' means lacking courage.