Synonyms:
* Line breaking: This is a more technical term often used in programming contexts.
* Text wrapping: A general term that can encompass both word and character wrapping.
* Justifying: This refers to the specific way lines are aligned (left, right, center, or justified).
Antonyms:
* Truncation: Cutting off text at a specific point, without wrapping. This might lead to incomplete words or sentences.
* Ellipsis: Using "..." to indicate that text has been omitted, rather than wrapping it.
It's important to note that the "best" synonym or antonym depends on the specific context in which "word wrapping" is used.