How to say "downright" in Japanese

• 真っ赤まっかJLPT N3approx.Common
  na-adjectiveCovers the figurative sense 'downright; complete; utter', as with a lie: what is dismissed is not partly but totally false. The common everyday choice, as in 真っ赤な嘘 'a downright lie'.
  そいつは真っ赤まっかなうそだ。↗

  That's a blessed lie.
• 真っ赤っかまっかっか
  na-adjectiveThe same figurative sense, as an emphatic variant of 真っ赤: a downright, utter lie. Less common than 真っ赤 and seldom the word you need — reach for 真っ赤 unless you want the extra emphasis.

Both words cover the same figurative use of 'downright', as in a downright or utter lie, so the choice is simple: take 「真っ赤」, the common word, and treat 「真っ赤っか」 as its less common emphatic variant.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 真っ赤まっかdownright (e.g. lie)
• 真っ赤っかまっかっかdownright (e.g. lie)