potable
Meaning: suitable for drinking
Usage: During sea voyages it is essential that ships carry a supply of potable water because salty ocean water makes anyone who drinks it sick.
arable
Meaning: suitable for growing crops
Usage: The farmer purchased a plot of arable land on which he will grow corn and sprouts.
solvent
Meaning: a liquid that dissolves another substance
Usage: Water is a solvent for salt and many other simple substances.
soluble
Meaning: able to dissolve
Usage: The plot of the spy film revolved around an untraceable and water-soluble poison.
utilitarian
Meaning: relating to or aiming at usefulness
Usage: The beautiful, fragile vase couldn’t hold flowers or serve any other utilitarian purpose.