Question

border on For example:border on sth His fear of the government borders on paranoia.border on sth The fanatical excitement you see at some political rallies in the south borders on mass hysteria.Note: Almost always used in relation to a negative extreme, though occasionally it's used in a more positive context, as in "his talent borders on genius".

Accepted Answer

Meaning: If something like an action or an attitude borders on something more extreme, it is close to being that extreme.Synonym: verge on, come close to

Borders Extreme Close Sth Meaning Action Attitude Synonym