1) Above all 2) As a rule 3) Mainly 4) Mostly 5) Most of all 6) Particularly 7) Primarily 8) Principally 1) Above all 2) For the most part 3) In the main 4) Mainly 5) Mostly 6) On the whole 7) Predominantly 8) Primarily 9) Principally 
• (adv.) In the first place; principally; preeminently; above; especially. • (adv.) For the most part; mostly.
Chief'ly adverb 1. In the first place; principally; preëminently; above; especially. « Search through this garden; leave unsearched no nook; But chiefly where those two fair creatures lodge. Milton. » 2. For the most part; mostly. « Those parts of t...
[adv] - for the most part
principally adverb for the most part; `he is mainly interested in butterflies`
primarily; essentially: He phoned chiefly to let us know he was feeling better. · mainly; mostly: This dish consists chiefly of noodles.