Exclamation, cry, and dear me are all synonyms for phew. Oh no and disaster are antonyms of phew. And here are 18 another word for phew.
Cry, dear me, exclamation, expletive, gee whiz, gesundheit, golly, good gracious, goodness gracious, gosh, gracious sakes, insertion, interpolation, interposition, oh dear, well, and shout are all synonyms for phew.
Phew synonym page has a variety of synonyms that differ in length. 1 synonym with 3, 5, 7, 10, 11, 12, and 16 letters and 2 synonyms with 4, 6, and 9 letters. 3 synonyms with 13 letters. For a total of 16 another word for phew.
After a long day's work, phew, relaxation!
Phew, I narrowly avoided a major disaster.
Phew, that was a close call!
Phew, I made it to the meeting on time.