high–water mark

the highest part or point <he hit the high-water mark of his acting career when he played Tiny Tim in a school play> Synonyms acme, apex, apogee, capstone, climax, crescendo, crest, crown, culmination, head, high noon, high tide, high-water mark, meridian, ne plus ultra, noon, noontime, peak, pinnacle, sum, summit, tip-top, top, zenithRelated Words bloom, blossom, flood tide, flower, glory, heyday, prime; cap, ceiling, roof; extreme, extremity, tip, vertex; high, highlight, highspotNear Antonyms abyss, base, foot; minimumAntonyms bottom, nadir, rock bottom