Difference between Superfluous and Unnecessary

SUPERFLUOUS vs UNNECESSARY: NOUN

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

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.
Supplied with superfluities; having somewhat beyond necessaries.
Doing more than what is called for; supererogatory.
Excessive.
Having no excuse for being
Serving no useful purpose
In music, of intervals, augmented.

Not necessary; needless; not required by the circumstances of the case; useless: as, unnecessary labor or care; unnecessary rigor.

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

Unnecessarily, Uncalled for, Reserve, Surplus, Supernumerary, Spare, Supererogatory, Excess, Extra, Redundant, Inessential, Gratuitous, Superfluous, Unneeded, Needless

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

Unnecessarily, Uncalled for, Reserve, Surplus, Supernumerary, Spare, Supererogatory, Excess, Extra, Redundant, Inessential, Gratuitous, Superfluous, Unneeded, Needless

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.

Lincoln undoubtedly hoped thus to avoid unnecessary friction.
This assessment, however, should not introduce unnecessary delay.
His memory of the subject made it unnecessary.
Term limits are unnecessary Term limits are completely unnecessary in the current political environment.
This would reduce unnecessary duplication, prevent wasting the time of additional participants and prevent exposing additional participants to unnecessary burden.
Accept No Unnecessary Risk: Unnecessary risk is that which carries no commensurate return in terms of benefits or opportunities.
This feature prevents an unnecessary credit check with the OCS and unnecessary monitoring of the call when the outcome is already determined.
The court should not require a party to respond to duplicative and unnecessary discovery requests because that would encourage unnecessary litigation.
Hardening involves implementing applicationlevel security approaches, removing unnecessary software, disabling unnecessary services, consulting guidelines and policies that are specific to your applic
This includes nervous or unnecessary hand motions, unnecessary tapping of feet or hands, etc.