unintentional, a. [accidental], [unpremeditated], fortuitous, [undesigned].
union, n. coalition, [combination], [merger], [fusion], unification, incorporation, conjunction, amalgamation, coalescence, [junction], [league], confederacy, [federation], [alliance]; [agreement], concurrence, unison. Antonyms: disunion. See separation.
unique, a. [unmatched], unexampled.
unite, v. [join], [combine], annex, [associate], [link], [couple], [yoke], [splice]; [consolidate], [merge], amalgamate, [fuse], [confederate], unify, coalesce, concur, [coöperate].
united, a. [combined], incorporate, federated, [confederate], affiliated, unified, blended, leagued, conjugate, yoked, amalgamated.
unity, n. [oneness], singleness; concord, [harmony], [agreement], [uniformity], unison, [concert].
universal language. pasilaly; Esperanto.
universal writing. pasigraphy.
unjust, a. [unfair], inequitable, iniquitous, unmerited.
unjustifiable, a. indefensible, [inexcusable], [unwarrantable].