The phrase "was full of" can be replaced by numerous synonyms to add variation and depth to writing. "Brimming with" can suggest an overflowing amount or great excitement. "Teeming with" implies a thriving and lively atmosphere. "Replete with" indicates a completeness or abundance of something. "Abounding in" can be used to express a plentiful or extensive quantity. "Permeated with" suggests a strong pervading presence. "Loaded with" implies a heavy and substantial amount. These synonyms allow for a more descriptive and engaging way of expressing "was full of" in writing.