When it comes to the word "startable", there are several synonyms that can be utilized to convey a similar meaning. One of these is "commencable", which suggests that an action or task can be initiated or begun. Another synonym is "initiable", indicating that something is capable of being instigated or launched. Similarly, "beginnable" can be used to describe an action that is able to be started. Additionally, "openable" can also be employed as a synonym for "startable", portraying the notion that something can be activated or made operational. All these alternatives provide a range of options suitable for expressing the concept of something being capable of commencing or initiating.