Superfluous (adjective)

Exceeding what is necessary or sufficient; unnecessary, excessive, or redundant.

Origin:

Late 16th century: from latin superfluus (from super- "over" + fluere "to flow"), from the notion of something "flowing over".

Examples:

1. The extra features on the phone were superfluous and added to the cost.
2. His explanation was long and detailed, but much of it was superfluous.
3. The company was accused of wasting resources on superfluous luxuries.
4. The additional pages in the report were deemed superfluous and removed.
5. The decoration on the cake was beautiful but it was seen as superfluous and removed.