Colorable is an adjective used to describe something that's plausible or believable. Here are some synonyms for the word "colorable": credible, reasonable, acceptable, feasible, likely, possible, believable, probable, persuasive, viable, tenable, plausible, convincing, creditable, valid, sound, compelling, substantial, cogent, authentic, logical. Some antonyms are: implausible, improbable, unrealistic, incredible, preposterous, unbelievable, outlandish, far-fetched, absurd, impossible, illogical, incredible. Using these synonyms, you can add variety and flavor to your writing, making it more interesting to read. By exploring these alternatives, you can recontextualize the idea and convey it more powerfully and convincingly.