IPA: /ˈruːbiəs/
KK: /ˈruːbiəs/
Having a deep red color, similar to that of a ruby gemstone.
The dress she wore was a beautiful rubious shade that caught everyone's attention.
Comparative: rubious-er
Superlative: rubious-est
The word 'rubious' is derived from 'ruber' (meaning red) in Latin, combined with the suffix '-ous' (meaning full of or possessing). Thus, 'rubious' describes something that is full of or characterized by a red color.
Think of 'ruber' meaning red, and remember that 'rubious' refers to something that is full of red color.