Wordnet 3.0
ADJECTIVE (1)
1. 
 not made explicit; 
- Example: "the unexpressed terms of the agreement"- Example: "things left unsaid"- Example: "some kind of unspoken agreement"- Example: "his action is clear but his reason remains unstated"[syn: unexpressed, unsaid, unstated, unuttered, unverbalized, unverbalised, unvoiced, unspoken]
WordNet (r) 3.0 (2006):
unverbalised
    adj 1: not made explicit; "the unexpressed terms of the
           agreement"; "things left unsaid"; "some kind of unspoken
           agreement"; "his action is clear but his reason remains
           unstated" [syn: unexpressed, unsaid, unstated,
           unuttered, unverbalized, unverbalised, unvoiced,
           unspoken]