Gutlessness is a term used to describe a lack of courage or bravery. It can also imply cowardice or timidity. There are a number of synonyms that can be used to describe someone who is gutless or weak-willed. These include spinelessness, pusillanimity, faint-heartedness, meekness, and timorousness. Other words that might be used to describe a gutless individual include feebleness, impotence, and indecisiveness. Essentially, any word that connotes a lack of strength or resolve can be used as a synonym for gutlessness. However, it is important to note that these words may be considered derogatory and should be used with caution.