1. Lacking courage or vitality
   "he was a yellow gutless worm" 
2. Weak in willpower, courage or vitality
   - namby-pamby, spineless, wishy-washy

See also: gutlessness, weak

Antonym: gutsy

• organize
• organized
• organized crime
• organized labor
• organized labour
• organized religion
• organizer
• organo-
• organogenesis
• organogram
• organoleptic
• organon
• organophosphate
• organophosphate nerve agent
• organs
• organum
• organza
• organzine
• orgasm
• orgasmic
• orgiastic
• orgy
• oribi
• orichalc
• orichalcum