Synonyms: undeveloped, unexploited
Definition: undeveloped or unused
Usage: vast unexploited (or undeveloped) natural resources; taxes on undeveloped lots are low
Similar words: fallow
Definition: undeveloped but potentially useful
Usage: a fallow gold market
Similar words: untapped
Definition: not drawn upon or used
Usage: untapped reserves of coal; the untapped stockrooms of our minds- G.R.Harrison