This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
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verb-intransitive. To become reduced to components, fragments, or particles.

verb-intransitive. To lose cohesion or unity: pressures that cause families to disintegrate

verb-intransitive. Physics & Chemistry To decompose, decay, or undergo a nuclear transformation.

v. To cause to disintegrate. See Synonyms at decay.

v. To undo the integrity of, break into parts.

v. To fall apart, break up into one's parts.

v. To separate into integrant parts; to reduce to fragments or to powder; to break up, or cause to fall to pieces, as a rock, by blows of a hammer, frost, rain, and other mechanical or atmospheric influences.

verb-intransitive. To decompose into integrant parts.

To separate into component parts; reduce to fragments; break up or destroy the cohesion of: as, Tocks are disintegrated by frost and rain.

To break up; separate into its component parts.

v. lose a stored charge, magnetic flux, or current

v. break into parts or components or lose cohesion or unity

v. cause to undergo fission or lose particles

"He created the Cabinet positions of Energy and Education, yet saw his one term disintegrate due to lack of experience."

composer   

disintegrated    disintegrates    disintegrating   

change integrity    change    modify    alter   

disintegrated    disintegrating   

decompose    resolve    dissolve    analyze    crumble    crumb    decay    weather    disgregate    diffuse   

integrate    reintegrate