Synonyms for climax

peak, apex, highest point, culmination, acme, pinnacle, meridian, intensification, crest, zenith, height, summit, apogee, extremity, limit, pitch, ascendancy, utmost extent, highest degree, point of highest development, turning point, crowning point, turning of the tide, decisive moment, defining moment, crisis, orgasm, ne plus ultra (Latin); see also maximum, top 1.

Antonyms anticlimax, depression*, nadir. See syn. study at summit.summit.

culminate, tower, end, top, top off, cap, cap off, crown, conclude, rise to a crescendo, reach a peak, come to a head, bring to a head, reach the zenith, peak, come to bring to a climax, finish, accomplish, fulfill, consummate; see also achieve 1, complete 1.