Hard

hard

(resistant to pressure)

hard

(severe)

hard

(unquestionable)

hard

(of water, high in dissolved calcium compounds)

kalkrijk

(of water, high in dissolved calcium compounds)

moeilijk

(requiring a lot of effort to do or understand)

moeilijk

(demanding a lot of effort to endure)

onweerlegbaar

(unquestionable)

sterk

(of drink: strong)

straf

(of drink: strong)

zwaar

(requiring a lot of effort to do or understand)

zwaar

(demanding a lot of effort to endure)