The word "indomitabilities" generally means the quality or state of being unbeatable, unbreakable, or unyielding. However, there are several antonyms that describe the opposite of this quality. These may include terms such as vulnerability, weakness, susceptibility, and flexibility. Other antonyms may include words like conquerable, submissive, tractable, and yielding. Essentially, the antonyms for "indomitabilities" describe qualities that are easily overcome or susceptible to change, rather than being steadfast and unwavering in the face of adversity. By understanding the antonyms of a word, we can gain a deeper appreciation for its meaning and also improve our ability to communicate effectively.