Synonyms of 'two-edged'
ambiguousDictionary, ambivalent, backhanded
The effect of the laws was two-edged.
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If you say that someone is ambivalent about something, they seem to be uncertain whether they really want it, or whether they really approve of it.
He maintained an ambivalent attitude to religion throughout his life.
A backhanded compliment is a remark which seems to be an insult but could also be understood as a compliment. A backhanded compliment is also a remark which seems to be a compliment but could also be understood as an insult.
a backhanded compliment
If you are equivocal, you are deliberately vague in what you say, because you want to avoid speaking the truth or making a decision.
His equivocal response gave nothing away.
Thesaurus for two-edged from the Collins English Thesaurus
having two cutting edges