Crossword Genius

Profound (4)

Ross

I think it could be either:

deep

wise

'profound' is the definition.
(synonyms)

This is all the clue.

(Other definitions for deep that I've seen before include "Wise - difficult to understand" , "Mysterious" , "(Of sound) low in pitch" , "Cavernous" , "Intense; low (in pitch)" .)

I've seen this clue in The Independent, The Star Tribune, The Sun, the King Feature Syndicate, the Penny Press, the Universal, the Sydney Morning Herald, The Guardian, The Telegraph, The Wall Street Journal, the USA Today, the Evening Standard, the Newsday, The New York Times, The Times and The Mirror.
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