Gasp adjectives are listed in this post. Each word below can often be found in front of the noun gasp in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing GASP.
audible, breathless, choked, choking, collective, convulsive, deep
faint, final, first, frightened, great, horrified, huge
involuntary, last, latest, little, long, loud, low
muffled, quick, ragged, sharp, shocked, short, silent
slight, small, soft, stifled, strangled, sudden, surprised
Hope this word list had the adjective used with gasp you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.