no-brainer

English

From no +‎ brain +‎ -er.

no-brainer (plural no-brainers)

(informal) An easy or obvious conclusion, decision, solution, task, etc.; something requiring little or no thought.
If the newer version performs as well for half the cost, the decision is a no-brainer.
- 2019 November 20, Graeme Pickering, “Plans breathing new life into Fife”, in Rail, page 49:
  "Babcock [an engineering services company with a facility at Rosyth] has new contracts for new frigates there, so opening up the opportunities for rail running in is a no-brainer."

an easy or obvious conclusion, decision, solution, task (idiomatic)

Chinese:
Cantonese: 明顯 / 明显 (ming⁴ hin²)[嘅決定]

Mandarin: 明顯 / 明显 (zh) (míngxiǎn)[的決定]
Czech: není žádná věda f
Finnish: itsestäänselvyys (fi)
French: évidence (fr) f
Georgian: ცხადი არჩევანი (cxadi arčevani), იოლი გადაწყვეტილება (ioli gadac̣q̇veṭileba)
German: Selbstläufer (de) m, einfache Sache f, klare Sache f, klarer Fall m, sonnenklar
Italian: bazzecola (it) f
Russian: не бино́м Ньюто́на m (ne binóm Nʹjutóna) (not Newton binomial), ежу́ поня́тно (ru) (ježú ponjátno) (clear (even) to a hedgehog)
Spanish: obviedad (es) f
Swedish: solklar (sv)