How to say "Useless" in Japanese

When translating "useless" into Japanese, you must choose carefully between 詮無きこと and 徒爾. In Japanese, 詮無きこと (せんなきこと (sennakikoto)) is typically associated with "useless; futile; pointless; of no avail" (Syllabus Level: N1) and represents A somewhat archaic or literary expression meaning something is pointless or cannot be helped. Often used in the form「詮無い」or「詮無きこと」.. On the other hand, 徒爾 (とじる (toji)) maps to "useless, futile, vain, fruitless, in vain" (Syllabus Level: N1) and represents Often used in formal contexts or writings to express that efforts or actions were pointless and yielded no results. It implies a strong sense of futility.. A literal translation of "useless" can often sound unnatural to native Japanese speakers if mixed up!