Difference between Inconsistent and Erratic

INCONSISTENT vs ERRATIC: NOUN

A rock moved from one location to another, usually by a glacier.
Any stone or material that has been borne away from its original site by natural agencies; esp., a large block or fragment of rock; a bowlder.
A rogue.
One who deviates from common and accepted opinions; one who is eccentric or preserve in his intellectual character.
An eccentric person.
Specifically In geology, a boulder or block which has been conveyed from its original site, probably by ice, and deposited at a distance; an erratic block. See erratic blocks, under I.
One who or that which has wandered; a wanderer.
A rock fragment that has been transported by ice to a location other than its place of origin and that may range in size from a pebble to a large boulder.
Anything that has erratic characteristics.

Not consistent
Not exhibiting uniformity of sentiment, steadiness to principle, etc.; unequal; fickle; changeable.
Not consistent; showing inconsistency; irreconcilable; contradictory, or having contradictory implications; discordant; at variance, esp. as regards character, sentiment, or action; incompatible; incongruous.
Not solvable for the unknowns by the same set of values. Used of two or more equations or inequalities.
Not in agreement or harmony; incompatible.
Lacking in correct logical relation; contradictory.
Not regular or predictable; erratic.
Displaying or marked by a lack of consistency, especially.
Not in agreement
Not capable of being made consistent or harmonious
Displaying a lack of consistency

Having no fixed or regular course; wandering.
Liable to sudden unpredictable change
Having no fixed course
Likely to perform unpredictably
Lacking consistency, regularity, or uniformity.
Deviating from the customary course in conduct or opinion; eccentric.
Unsteady, random; prone to unexpected changes; not consistent
The phenomena which relate to transported materials on the earth's surface.
Masses of stone which have been transported from their original resting places by the agency of water, ice, or other causes.
Irregular; changeable.
Deviating from a wise of the common course in opinion or conduct; eccentric; strange; queer.

Not consistent in conception or in fact; wanting coherence or agreement; discordant; discrepant.
Lacking self-agreement or uniformity; self-contradicting.
Synonyms Incongruous, etc. See incompatible. Contradictory. etc. See contrary.

Sometimes it would start and sometimes it wouldn't"
In zoology, occurring in an unusual location.
Wandering; having no certain course; roving about without a fixed destination.
Deviating from the proper or usual course in opinion or conduct; eccentric.
Moving; not fixed or stationary: applied to the planets as distinguished from the fixed stars.
In medicine, irregular; changeable; moving from point to point, as rheumatic or other pains, or appearing at indeterminate intervals, as some intermittent fevers.
In geology, relating to or explanatory of the condition and distribution of erratics. See II., 2.

Consistent, Inconsistency, Unreconcilable, Self contradictory, At odds, Unreconciled, Unconformable, Irreconcilable, Incongruous, Discrepant, Incompatible, Conflicting, Uneven, Spotty, Contradictory

Volatile, Uneven, Unpredictable, Inconsistent, Changeful, Planetary, Wandering, Quicksilver, Changeable, Fickle, Unsettled, Undependable, Unreliable, Mercurial, Temperamental

Consistent, Inconsistency, Unreconcilable, Self contradictory, At odds, Unreconciled, Unconformable, Irreconcilable, Incongruous, Discrepant, Incompatible, Conflicting, Uneven, Spotty, Contradictory

Volatile, Uneven, Unpredictable, Inconsistent, Changeful, Planetary, Wandering, Quicksilver, Changeable, Fickle, Unsettled, Undependable, Unreliable, Mercurial, Temperamental

This applies to inconsistent verdicts between codefendants, too.
Thus, findings from large randomized trials are inconsistent.
The inconsistent stories with the evidence, which continued up until the end to be inconsistent with the evidence.
Inconsistent verdicts can take the form of interrogatory questions being inconsistent with the verdict or with verdicts being inconsiste nt.
These bylaws must neither be inconsistent with this constitution nor be inconsistent with the responsibilities and rights of secondary school students of Fairfax County.
PCS model, we imposed a preference order by specifying the introduced inconsistent choices, and then observed whether the DS procedure found the inconsistent choices.
Taken as a whole, they reveal inconsistent ACAA implementation by the airline industry and weak, inconsistent enforcement of the law by DOT.
The decentralized surveydistribution through Peace Corps postsresulted inthe inconsistent timingof the survey launchand inconsistent timing and number of survey followups.
Conduct inconsistent with the testimony of a witness, may be shown as well as former statements thus inconsistent.
This canresult in confusion for users, increased complexity inextract processes and inconsistent results from queriesif hierarchies become inconsistent.

Welding machines with erratic arcs also waste energy.
Has erratic eating habits, often refusing to eat.
Deviating, erratic, wandering, out of the common way.
That is what causes this erratic, moody behaviour.
By contrast, visceral referral is much more erratic.
Any ideas of why this has erratic function?
MATTHEWS: Well, this all seems pretty erratic, Michael.
Much too often he is erratic and distracted.
Bookchinreflect the characteristic of being uneven and erratic.
Furthermore, their study revealed that waste collection in Gweru is not only erratic but also erratic as waste collectors leave behind some wastes.