Difference between Sufficient and Necessary

SUFFICIENT vs NECESSARY: NOUN

Such things, in respect to infants, lunatics, and married women, as are requisite for support suitable to station.
A thing that is necessary or indispensable to some purpose; something that one can not do without; a requisite; an essential; -- used chiefly in the plural.
A privy; a water-closet.
Anything that is necessary or indispensable; that which cannot be disregarded or omitted: as, the necessaries of life.
Something indispensable.
Anything indispensable
Bathroom, toilet, loo

Needed or required: : indispensable.
Absolutely essential
Unavoidably determined by prior circumstances
Unavoidably determined by prior conditions or circumstances; inevitable.
Logically inevitable.
Required by obligation, compulsion, or convention.
Needed, required
Acting from necessity or compulsion; involuntary; -- opposed to free.
Such as must be; impossible to be otherwise; not to be avoided; inevitable.
Impossible to be otherwise, or to be dispensed with, without preventing the attainment of a desired result; indispensable; requisite; essential.

Sufficing; equal to the end proposed; as much as is or may be necessary; adequate; enough.
Possessing adequate talents or accomplishments; of competent power or ability; qualified; fit; competent; capable.
Having a competence; well-to-do.
Self-sufficient; self-satisfied; content.
Synonyms Ample, abundant, satisfactory, full.
1 and Competent, Enough, etc. See adequate.
(determiner) The smallest amount needed.

Synonyms Necessary, Essential, Requisite, Needful. The following remarks refer to the application of the words to ordinary practical affairs, not to philosophy. Necessary is so general a word that it covers all the others, and has the additional sense, which they do not have, of inevitable. Essential is an absolute word, noting that which is a part of the chief end of the action, or of every mode of bringing that end about. Requisite is less strong than essential, and needful is less strong still; yet each is strong and emphatic, applying to that which is imperatively needed. Needful generally applies to concrete, and often to temporary, things: as, knowledge of the countries visited is requisite, and even essential, to enjoyment of travel, but money is needful in order to be able to travel at all. Needful is often applied to that which must be supplied to produce or effect a perfect state or action.
Acting from compulsion or the absolute determination of causes: opposed to free. See free.
Naturally and inseparably connected in the ordinary course: as, necessary consequences.
Requisite for reasonable convenience and facility or completeness in accomplishing the purpose intended: as, the land necessary for building a railroad.
In law:
Such that it cannot be disregarded or omitted; indispensable; requisite; essential; needful; required: as, air is necessary to support animal life; food is necessary to nourish the body.
Such as must be; that cannot be otherwise.

Proper, Satisfactory, Inadequate, Needed, Substantial, Requisite, Reasonable, Ample, Necessary, Insufficient, Comfortable, Spare, Decent, Enough, Adequate

Adequate, Need, Appropriate, Sufficient, Imperative, Needful, Obligatory, Inevitable, Requirement, Indispensable, Necessity, Requisite, Essential, Required, Needed

Proper, Satisfactory, Inadequate, Needed, Substantial, Requisite, Reasonable, Ample, Necessary, Insufficient, Comfortable, Spare, Decent, Enough, Adequate

Adequate, Need, Appropriate, Sufficient, Imperative, Needful, Obligatory, Inevitable, Requirement, Indispensable, Necessity, Requisite, Essential, Required, Needed

Sufficient braking capacity to descend ramp inclines safely.
Makes sufficient income to sustain trader and family.
Black Americans of their property without sufficient compensation.
LORD be sufficient for you in JESUS name.
Government centers lacked sufficient space, staff, and resources.
But these steps by themselves are not sufficient.
The issue is not whether she had a sufficient excuse but whether the trail court had reason to believe she had a sufficient excuse.
There sufficient cash on hand and accounts receivable to pay for taxes and accounts payable sufficient on.
SME exchanges have been created which failed to attract sufficient companies for listing or to achieve sufficient trading to maintain active markets.
Are necessary and often sufficient, but in a prokaryote, these are necessary and often sufficient, but sufficient.

Accordingly, risk taking is necessary in infrastructure projects.
Additional documents may be required as deemed necessary.
And if necessary we can risk a jump.
HPDetermine price and source of necessary sublet operations.
If correction is necessary, do it in private.
If the answer is no, revisions are necessary.
Board deems appropriate or necessary in the circumstances.
The kinds of expertise necessary to develop decision support analysis tools differ from the expertise necessary to develop data capture and database management tools.
Retail Sale Tags, and Merchandise Tags are a necessary part of every retail store display and provide necessary information to your customers.
If it is necessary to change a term, it may be necessary to draft and incorporate an amendment or extension.