44 synonyms for consequence such as gravity, aftermath, account, and concern. Consequence is a noun, and its antonyms are cause and prevention.
Aftermath, by-product, conclusion, concomitant, corollary, culmination, denouement, effect, end, end result, fruit(s), issue, out-turn, outcome, pay-off, produce, product, ramification, reaction, repercussion, result, reverberations, sequel, sequelae, termination, and upshot.
Account, concern, gravity, import, importance, interest, mark, moment, momentousness, note, prominence, seriousness, significance, substance, value, weight, and weightiness.