unwarranted

adj

1. Not warranted; being without warrant, authority, or guaranty; unwarrantable.
2. Unjustified, inappropriate or undeserved.

   “The attack was so unwarranted and delivered with such venom that his unpreparedness for it left him speechless.”

   “The dictionaries themselves cover this additional lexis in what can best be described as a piecemeal fashion, with an obvious but unwarranted bias towards colonial era lexis.”

   “This strike action by the RMT is completely unwarranted and unjustified.”