o·ti·ose (ōshē-ōs′, ōtē-)
1. Lazy; indolent.
2. Of no use; pointless or superfluous: It is otiose to review what happened when the events are so well-known.
3. Ineffective; futile. See Synonyms at vain.
[Latin ōtiōsus, idle, from ōtium, leisure.]
o′ti·osi·ty (-ŏsĭ-tē) n.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The American Heritage Dictionary Blog
Check out our blog, updated regularly, for new words and revised definitions, interesting images from the 5th edition, discussions of usage, and more.