Breadcrumb Home > Thesaurus > C Synonyms of carboniferous Find synonyms for: Noun 1. Carboniferous, Carboniferous period usage: from 345 million to 280 million years ago Adjective 1. carboniferous usage: of or relating to the Carboniferous geologic era; "carboniferous rock system" 2. carbonaceous, carbonous, carbonic, carboniferous usage: relating to or consisting of or yielding carbon WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of carboniferous (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: spelunk Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language