BASICALLY
basically, fundamentally, essentially
(adverb) 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”
Source: WordNet® 3.1
Etymology
Adverb
basically (comparative more basically, superlative most basically)
in a fundamental, essential or basic manner
mostly; generally; for the most part
(filler) used to refer to the most important or fundamental point the speaker is making; sometimes tending towards a meaningless filler word
Synonyms
• (in a fundamental manner): essentially, fundamentally; see also fundamentally
• (for the most part): chiefly, more often than not; see also mostly
Source: Wiktionary
BASIC
Ba"sic, a.
1. (Chem.)
(a) Relating to a base; performing the office of a base in a salt.
(b) Having the base in excess, or the amount of the base atomically
greater than that of the acid, or exceeding in proportion that of the
related neutral salt.
(c) Apparently alkaline, as certain normal salts which exhibit
alkaline reactions with test paper.
2. (Min.)
Definition: Said of crystalline rocks which contain a relatively low
percentage of silica, as basalt. Basic salt (Chem.), a salt formed
from a base or hydroxide by the partial replacement of its hydrogen
by a negative or acid element or radical.
Source: Webster’s Unabridged Dictionary 1913 Edition