The antonym for "am endowed with" can be expressed in several ways depending on the context of the term. If the word is interpreted as a blessing or some extraordinary talent, the antonym could be "deprived of" or "lacking in." However, if the word is perceived as a curse, the antonym could be "free from" or "not burdened with." Additionally, if the word is taken from a materialistic point of view, the antonym could be "bereft of" or "poor in." Regardless of the interpretation, the antonym for "am endowed with" suggests a negative connotation that does not represent a strength or positive trait.