INHARMONIOUS
inharmonious
(adjective) lacking in harmony of parts; “an inharmonious (or incongruous) mixture of architectural styles”
inharmonious, unharmonious
(adjective) not in harmony
Source: WordNet® 3.1
Etymology
Adjective
inharmonious (comparative more inharmonious, superlative most inharmonious)
(music) Not in harmony; discordant
Lacking accord or agreement
Source: Wiktionary
In`har*mo"ni*ous, a. Etym: [Pref. in- not + harmonious: cf. F.
inharmonieux.]
1. Not harmonious; unmusical; discordant; dissonant.
Sounds inharmonious in themselves and harsh. Cowper.
2. Conflicting; jarring; not in harmony.
Source: Webster’s Unabridged Dictionary 1913 Edition