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Not coherent; disjointed; confused; denoting a lack of connectedness or organization of parts during verbal expression.
[L. in- neg. + co-haereo, pp. -haesus, to cling together, fr. haereo, to stick]


Etymology: L, in, not, cohaere, to hold together
1 disordered; without logical connection; disjointed; lacking orderly continuity or relevance.
2 unable to express one's thoughts or ideas in an orderly, intelligible manner, usually as a result of emotional stress.


Not coherent or understandable.

coherent sources 

If light beams from two independent sources reach the same point in space, there is no fixed relationship between the phases of the two light beams and they will not combine to form interference effects. Such light waves are called incoherent. If, on the other hand, the two light beams are superimposed after reaching the same point by different paths but are both radiated from one point of a source, interference effects will be seen because the phase difference in the two beams is constant. The two virtual sources from which these two beams are apparently coming are called coherent sources and any rays in which there is a constant phase difference are called coherent rays. Prior to the advent of the laser, the only way in which one could obtain coherent rays was by dividing the light coming from a point source into two parts. See Young's experiment; holography; clinical maxwellian view system; optical coherence tomography.
References in periodicals archive ?
Al Nuaimi then started shouting at them and speaking incoherently.
As to keeping the little mosquito-eating devils outside where they belong so that your spouse does not call you at work screaming incoherently, use mothballs.
The fraction of UCN scattered incoherently into the material could possibly explain the observed "anomalous losses.
He spoke incoherently after the officers woke him, Capt Anthony DiBona said.
Hoffmann cleverly transitions from the family dinner table conversation--rudely jolted by the artist's incoherently angry brother Chuck (Lee Matthews)--to Paul's painterly p.
So often the events of our lives seem like the thousand pieces of a puzzle lying incoherently and disconnectedly before us.
A 14-year-old male is brought to the emergency department by his father because after the teen arrived home he began mumbling incoherently and stumbling.
Traditional theology incoherently has God both willing death and promising from eternity to abolish death (86).
He had apparently begun muttering incoherently, wandering from seat to seat and stripping off his clothes, before breaking into the cockpit and threatening the pilots.
Or she scratches and scrawls and drips paint wildly over the surface until even a field of sunny colors lapses incoherently, like an explosion in a crayon factory (South, 1989).
Instead of marching straight forward from 1800 and describing our nation's experiments with bankruptcy, Professor Skeel flits back and forth across decades, often incoherently, giving some dates, hinting at others and sometimes forgetting to say in just what era he is wandering.