Wordnet 3.0
ADVERB (1)
1. 
 in essence; 
 at bottom or by one's (or its) very nature; 
- Example: "He is basically dishonest"- Example: "the argument was essentially a technical one"- Example: "for all his bluster he is in essence a shy person"[syn: basically, fundamentally, essentially]
WordNet (r) 3.0 (2006):
basically
    adv 1: in essence; at bottom or by one's (or its) very nature;
           "He is basically dishonest"; "the argument was
           essentially a technical one"; "for all his bluster he is
           in essence a shy person" [syn: basically,
           fundamentally, essentially]