(used before a noun) Complete; utter; absolute; thoroughgoing. Their lead singer is an out-and-out genius when it comes to writing music!That's an out-and-out lie! I demand you take that back!
out-and-out
having all the qualities of a particular thing or person, especially something or someone unpleasant (always before noun) The trip was an out-and-out disaster: the airline lost our luggage, the hotel was dirty, and it rained every day.I didn't smash that window - that's an out-and-out lie!
out-and-out
mod. complete or total; blatant. Don’t be such an out-and-out stinker!