Synonyms for «big reason»

huge large significant important major great strong good whole main leading key much different chief several primary real crucial massive top powerful basic long wide single numerous prime bad various enough positive business multiple fundamental principal small hidden substantial solid little common simple possible interesting likely compelling deciding countless

factor rationale motive purpose explanation motivation part causes decision problem argument advantage way motivator answer sense role effect point lot benefit aspect influence importance source force success basis story deal culprit number facts impact driver thing incentive job significance host solution help kind people consideration draw plenty variety couple