deviationist

de·vi·a·tion  (dv-shn)

n.

1. The act of deviating or turning aside.

2. An abnormality; a departure: "Vice was a deviation from our nature" Henry Fielding.

3. Deviant behavior or attitudes.

4. Divergence from an accepted political policy or party line.

5. Deflection of a compass needle caused by local magnetic influence, especially on a ship.

6. Statistics The difference, especially the absolute difference, between one number in a set and the mean of the set.

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devi·ation·ism n.

devi·ation·ist adj. & n.

Synonyms: deviation, aberration, divergence
These nouns mean a departure from what is prescribed or expected: tolerates no deviation from the rules; regretted the aberrations of my adolescence; the divergence of two cultures.

Thesaurus

Noun

1.

deviationist - an ideological defector from the party line (especially from orthodox communism) defector, deserter - a person who abandons their duty (as on a military post)