IPA: /ˈspaɪn.ləs.nəs/
KK: /ˈspaɪnˌlɛs.nəs/
The condition of lacking courage or determination; being afraid to take action or stand up for oneself.
His spinelessness in the face of criticism disappointed his friends.
Spinelessness → It is formed from "spineless" (from "spine" (from Latin *spina*, meaning thorn or spine) and the suffix "-less" (meaning without)) and "-ness" (meaning a state or condition). The word "spinelessness" refers to the state of being without a spine, metaphorically indicating a lack of courage or determination.
Think of being 'without' ('-less') a 'spine' ('spina'), which helps you remember that 'spinelessness' means lacking courage or resolve.