CLIMACTIC

climactic

(adjective) consisting of or causing a climax; “a climactic development”

Source: WordNet® 3.1

Adjective

climactic (comparative more climactic, superlative most climactic)

Of, pertaining to, or constituting a climax; reaching a decisive moment or point of greatest tension.

• The race ended in a climactic, neck-and-neck scramble for the finish line.

Usage notes

• Do not confuse with climatic, which relates to climate.

Source: Wiktionary

Cli*mac"tic, a.

Definition: Of or pertaining to a climax; forming, or of the nature of, a climax, or ascending series.

A fourth kind of parallelism . . . is still sufficiently marked to be noticed by the side of those described by Lowth, viz., climactic parallelism (sometimes called "ascending rhythm"). S. R. Driver.

Source: Webster’s Unabridged Dictionary 1913 Edition