Effectless a. : Without effect or advantage; useless; bootless.

Example:
What's a good word to use that means "don't care", "Effectless", "doesn't matter" etc.?

Taxonomy
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Defination from the web:
Effectless in the Online Dictionary. Meaning of Effectless. Pronunciation of Effectless. Translations of Effectless. Effectless synonyms, Effectless antonyms. ... course, that the time apparently wasted in these effectless studies could have been well spent in deepening ...