Usually when we describe something as extraordinary, we mean it is uncommon and noteworthy. The adjective phenomenal is used in much the same way, but it conveys even more awe and wonder. Phenomenal is defined as “highly extraordinary or prodigious” or “exceptional.” The noun phenomenon, from which the adjective derives, refers to something that is impressive or extraordinary. It also refers to something (a fact, occurrence, or circumstance) that is observed or observable, a category that is sometimes contrasted with what is able to be known by way of reason. This, perhaps, sheds light on the unique texture of the adjective: something that is phenomenal is observably remarkable to the extent that it challenges reason, expectation, or belief.

The straightforward adjective informed describes someone or something that has or is prepared with information or knowledge. An informed decision, for instance, is one that is made with relevant information taken into account. The adjective savvy is not so transparent. Someone who is savvy about something is experienced or knowledgable on that topic—you’re not going to get much by them (not that you should try!). Where informed emphasizes the presence of information, savvy emphasizes practical understanding and a familiarity that lends itself to shrewd maneuvering or strategic decision making. Now go forth, friends, and relish your synonym-savvy status!

Brace yourselves, synonym seekers, because today's word pair takes us into iffy territory. The adjectives doubtful and dubious both deal with a lack of certainty. Doubtful is commonly used to describe things that are unlikely or improbable, e.g. It is doubtful that the event will take place without an audience. Dubious emphasizes suspicion, especially with regard to the quality or propriety of something. A dubious claim is one that should not be taken at face value. An action or argument that is described as morally dubious is perhaps not as high-minded or noble as it seems.