1‘Will ran back, arriving flushed and breathless’
out of breath, panting, puffing, huffing and puffing, puffing and blowing, puffed, puffed out, wheezing, wheezy, choking, winded
short of breath, short-winded
exhausted, tired out
informal out of puff
2‘the crowd waited, breathless with anticipation’
agog, all agog, eager, expectant, open-mouthed, waiting with bated breath, on the edge of one's seat, on tenterhooks, in suspense, on pins and needles, on edge, excited, impatient
We take a look at several popular, though confusing, punctuation marks.