Difference between Unneeded and Superfluous

UNNEEDED vs SUPERFLUOUS: ADJECTIVE

In excess of what is required or sufficient.
An interval that exceeds a major or perfect interval by a semitone.
More than is wanted or is sufficient; rendered unnecessary by superabundance; unnecessary; useless; excessive.
Being beyond what is required or sufficient.
More than is needed, desired, or required
Serving no useful purpose; having no excuse for being

Having no excuse for being
Serving no useful purpose
In music, of intervals, augmented.
Excessive.
Doing more than what is called for; supererogatory.
Supplied with superfluities; having somewhat beyond necessaries.
More than is wanted or sufficient; unnecessary from being in excess of what is needed; excessive; redundant; needless: as, a composition abounding with superfluous words.

Unwanted, Uncalled for, Supernumerary, Reserve, Surplus, Supererogatory, Spare, Gratuitous, Redundant, Extra, Excess, Inessential, Needless, Superfluous, Unnecessary

Extraneous, Useless, Surplus, Excess, Spare, Supernumerary, Extra, Supererogatory, Wasted, Worthless, Unneeded, Redundant, Otiose, Unnecessary, Pointless

Unwanted, Uncalled for, Supernumerary, Reserve, Surplus, Supererogatory, Spare, Gratuitous, Redundant, Extra, Excess, Inessential, Needless, Superfluous, Unnecessary

Extraneous, Useless, Surplus, Excess, Spare, Supernumerary, Extra, Supererogatory, Wasted, Worthless, Unneeded, Redundant, Otiose, Unnecessary, Pointless

Adding unneeded fields will add to processing time.
Test that command exists and suppress unneeded output.
Never return unneeded chemicals to the original containers.
Which fields are unneeded and often left blank.
Are we maintaining unneeded warehouse or office space?
Depart all unneeded valuable items in the home.
Minimize distractions and bandwidth by closing unneeded programs.
Therefore, UPS strips unneeded data from navigation files.
Destroy Unneeded Personal Financial Records Shred unneeded credit card statements, ATM and debit card receipts, and other documents that contain personal financial information.
To separate needed tools, parts, and instructions from unneeded materials and to remove the unneeded ones.

Superfluous copies should not be made or kept.
SUBMERGED BALLAST PUMPS make the pump room superfluous.
This description, of course, made the section superfluous.
First, a statute cannot be interpreted as superfluous.
Spot superfluous adjectives, weak verbs, and unwanted repetitions.
What a superfluous use of time and money.
It would be superfluous to multiply these examples.
These are not superfluous decorations or lifestyle choices.
Internal Revenue Service Omit superfluous words Words are superfluous when they can be replaced with fewer words that mean the same thing.
And to the believer it must be superfluous, if true notices of Christ are superfluous to believers.