principally

prin·ci·pally

US/ˈprɪnsɪpli/ rare

adverb

for the most part

“he is mainly interested in butterflies”

Synonyms

chiefly
primarily
mainly
in the main

Origin

From Middle English principaly. By surface analysis, principal + -ly.

Related words

Pertaining to

primary
chief

WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.