"Unwarranted fear" refers to being scared or anxious without any valid or reasonable cause or justification. It means feeling afraid when there is no real danger or threat present. Full definition
Wilcox hopes that the research will urge researchers to carefully examine their testing protocols to ensure that the proteins she discovered in lionfish tissues don't lead to unwarranted fear of lionfish consumption. (sciencedaily.com)
Wikipedia describes it as ``... the process, and the result, of the psychological manipulation of a child into showing unwarranted fear, disrespect, or hostility towards a parent or other family member.» (iandoliedensfamilylaw.com)
There was no scientific basis for this spoiling theory, just unwarranted fears and opinions. (sortacrunchy.net)