1) General subject: difference of opinion, disaccord, disagreement, discord, discordance, discrepancy, dissension, dissent, falling-out, irreconcilability, jar, negative, non-compliance, non-consent, nonconcurrence, objection, opposition, rent, strife, thumbs down, thumbs-down, dissent (Any member of the Tribunal may attach his individual opinion to the award, whether he dissents from the majority or not, or a statement of his dissent. - Каждый член состава арбитража вправе приложить к арбитражному решению свое л), pushback
2) Geology: non-conformity, nonconformity (в напластовании слоёв), unconformity
3) Bookish: dissidence
4) Mathematics: odds, variance
5) Religion: ambushment
6) Economy: disconformity
7) Accounting: disagreement (аудиторов; см.также qualifications - оговорки)
8) Psychology: disharmony
9) Jargon: bone, down-thumb, gripe, neighbo, falling out (Tom and Bill had a little falling out. Том и Билл немного несогласны.), hassel, hassle
10) Oil: discontinuity, discordance unconformity (о характере залегания)
11) Fishery: oce discordance
12) Business: contradiction, contravention, denial, divergence, noncompliance
13) leg.N.P. difference, lack of agreement
14) Chemical weapons: non-acceptance, nonacceptance
15) Makarov: break, incompliance, unconformability (несогласное залегание, несогласное напластование), unconformity (1. несогласное залегание, несогласное напластование; 2. поверхность несогласия)
Универсальный русско-английский словарь. Академик.ру. 2011.