Webster's Revised Unabridged Dictionary · 1913

Disagreement

Disagreement (dis`ȧ*grē"ment) , noun

[Compare French désagrément disagreeable circumstance, disagreeableness.]

1.
The state of disagreeing; a being at variance; dissimilitude; diversity.
2.
Unsuitableness; unadaptedness. [Rare]
3.
Difference of opinion or sentiment.
4.
A falling out, or controversy; difference.