をものともせず is a formal, literary expression meaning "making nothing of," "in defiance of," or "regardless of." It describes someone who faces a significant difficulty, obstacle, or adversity but pushes forward without being deterred by it. The expression conveys a sense of courage, determination, or resilience.
The structure is: Noun + をものともせず(に)
もの here refers to "something (worth worrying about)," and ともせず means "without treating it as such." Together, the phrase literally means "without treating it as anything" – i.e., disregarding it entirely.The noun before をものともせず is almost always something negative or challenging – hardship, danger, criticism, illness, bad weather, etc. It would be unnatural to use this with something trivial or positive.
This expression is used to describe admirable or praiseworthy actions. The subject is someone who overcomes adversity through sheer will.
It appears frequently in written language, news articles, biographies, and formal speeches. It is rarely used in casual conversation.
The form をものともせずに (with に) can also be used, functioning adverbially before the main verb: