adjective

1. Complete, utter.

   “He is an out-and-out idiot.”

2. (animal husbandry) thoroughly cross-bred; a breeding strategy esp. with poultry where new roosters are circulated yearly to maintain a mongrel flock.

   “1840, The Sporting Magazine, May 1840, Vol XXI Second Series”

Synonyms: altogether, downright, through and through