'Coarser' definitions:

Definition of 'Coarser'

From: GCIDE

Coarse \Coarse\ (k[=o]rs), a. [Compar. Coarser (k[=o]rs"[~e]r); superl. Coarsest.] [As this word was anciently written course, or cours, it may be an abbreviation of of course, in the common manner of proceeding, common, and hence, homely, made for common domestic use, plain, rude, rough, gross, e. g., "Though the threads be course." --Gascoigne. See Course.] [1913 Webster]
1. Large in bulk, or composed of large parts or particles; of inferior quality or appearance; not fine in material or close in texture; gross; thick; rough; -- opposed to fine; as, coarse sand; coarse thread; coarse cloth; coarse bread. [1913 Webster]
2. Not refined; rough; rude; unpolished; gross; indelicate; as, coarse manners; coarse language. [1913 Webster]
I feel Of what coarse metal ye are molded. --Shak. [1913 Webster]
To copy, in my coarse English, his beautiful expressions. --Dryden.
Syn: Large; thick; rough; gross; blunt; uncouth; unpolished; inelegant; indelicate; vulgar. [1913 Webster]