Finding synonyms for the word "tiresome" can be useful when you want to spice up your writing or avoid repetition. Some possible words that convey similar meaning to tiresome include tedious, monotonous, wearisome, exhausting, and arduous. These words are all applicable in different situations depending on the context. For example, tedious can be used to describe a task that is dull and repetitive, while wearisome may be used to convey feelings of exhaustion after a long day of work. It is essential to choose the right synonym that accurately represents the intentions behind your writing. Having a diverse collection of synonyms can also elevate the language used in your writing.