arrant

complete and wholly (usually modifying a noun with negative connotation)

An arrant fool, Lawrence surprised nobody when he lost all his money in a pyramid scheme that was every bit as transparent as it was corrupt.

Event 2: We say homosexuality is a variant sexuality which does no intrinsic harm to the consenting adults that practice it or anyone else outwith their relationship, rejecting in no uncertain terms your arrant presumption that you have the privilege to impose your morés on us -- or anyone else, for that matter -- and criticising your judgementalism as ethically retarded.

Event 2: We say homosexuality is a variant sexuality which does no intrinsic harm to the consenting adults that practice it or anyone else outwith their relationship, rejecting in no uncertain terms your arrant presumption that you have the privilege to impose your morés on us -- or anyone else, for that matter -- and criticising your judgementalism as ethically retarded.

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