Synonyms: deepening
Definition: a process of becoming deeper and more profound
Similar words: development, evolution
Definition: a process in which something passes by degrees to a different stage (especially a more advanced or mature stage)
Usage: the development of his ideas took many years; the evolution of Greek civilization; the slow development of her skill as a writer
Synonyms: deepening, thickening
Definition: accumulating and becoming more intense
Usage: the deepening gloom; felt a deepening love; the thickening dusk
Similar words: intensifying
Definition: increasing in strength or intensity