Synonyms of unprovoked

1 Syllable
wrong
2 Syllables
undue, groundless, unfair, unjust
3 Syllables
baseless, bottomless, unfounded, ungrounded, gratuitous
4 Syllables
unjustified, unwarranted, uncalled-for, foundationless
5 Syllables
unreasonable, inexcusable, indefensible, unjustifiable, unconscionable, unwarrantable