Synonyms:
basically, fundamentally, essentially
Meaning: 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"
Usage examples
The captain's fingers then ran over the instrument's keyboard, and I noticed that he touched only its black keys, which gave his melodies a basically Scottish color.