otiose

There is no superfluous ornament in his orations, nothing tawdry, nothing otiose.

Do they serve to direct observation, colligate data, and guide experimentation, or are they otiose?

A historian may be a theist; but, so far as his work is concerned, this particular belief is otiose.

Searching comparisons between the arts of Strindberg and Shakespeare are otiose.

The principle "same cause, same effect," which philosophers imagine to be vital to science, is therefore utterly otiose.