Bituminise is a relatively uncommon word that refers to the process of applying bitumen, a sticky black or brown viscous liquid, to a surface. Synonyms for this word are few and far between, but some options include asphaltize, tar, or even simply coat. Each of these words communicates the same basic idea of applying a sticky substance to a surface to either protect it or improve its appearance. While "bituminise" may not be a commonly used word, it is important to understand its meaning and potential synonyms for those in industries such as construction or engineering.