Splinter means a small, sharp, and pointed piece of wood, glass, or metal that is broken off from a larger object. The antonyms for the phrase "more splinter" can be smooth, unblemished, whole, perfect, unbroken, or intact. These antonyms indicate that the object is complete and undamaged. Splinter could also mean to divide into smaller groups or break apart. Antonyms for this definition could be unify, consolidate, join, or integrate. These antonyms suggest that the object is brought together and strengthened. Knowing the antonyms for the phrase "more splinter" can help us describe objects that are in good condition and not separated into smaller pieces.