Select the most appropriate word for the given group of words.

Something no longer in use

Obsolete

The most appropriate word for the given group of words "something no longer in use" is obsolete.

• Obdurate means stubborn or unyielding.
• Odious means hateful or disgusting.
• Ominous means threatening or foreboding.

Obsolete means no longer in use or no longer produced. It is the most accurate word to describe something that is no longer used.