All wordskerasPlay pronunciation.kerasL1CommonMeanings1hard; firm; toughAdj2harsh; severeAdjExamplesPlay pronunciation.Batu itu sangat keras.A1The stone is very hard.Play pronunciation.Biskut ini masih keras walaupun sudah lama disimpan.A2These biscuits are still hard even though they have been stored for a long time.Word familyRoot wordkerashard; firm; toughDerived wordsberkerasbeR-to insist; to persist stubbornlymengerasmeN-to harden; become hard or stiffsekerasse-as hard as; as firmly as