The phrase "out in left field" is often used to describe something that is unexpected, unusual, or strange. Synonyms for this phrase include "off the beaten path," "out of the blue," "oddball," "eccentric," "unconventional," "quirky," "off-kilter," "off-center," "far-fetched," "offbeat," "illogical," "irrational," "wild," "bizarre," "unorthodox," "off-key," and "out of left field." These synonyms all share the connotation of being different from what is expected or usual, and can be used in a variety of contexts to describe people, ideas, situations, and events that are outside the norm or standard.