unknown adj.

VERBS be | remain These sites remain largely unknown to the British public.

ADV. absolutely, completely, entirely, quite, totally, utterly His whereabouts were quite unknown during this period. | almost, practically, virtually This drug was practically unknown in Britain. | largely | comparatively, relatively She was then still comparatively unknown. | as yet, currently, still | hitherto, previously a period of democratic development previously unknown in their country | apparently | otherwise He cites the works of two otherwise unknown authors, the originals of these works having been lost.

PREP. to Gold was totally unknown to their civilization.