Imitative
Part of speech: adjective
Definition: Imitating; copying; not original. Modelled after another thing.
Onomatopoetic
Part of speech: adjective
Definition: ; concerning or characterized by onomatopoeia.
Imitative as an adjective is imitating; copying; not original. while Onomatopoetic as an adjective is ; concerning or characterized by onomatopoeia.
Part of speech: adjective
Definition: Imitating; copying; not original. Modelled after another thing.
Part of speech: adjective
Definition: ; concerning or characterized by onomatopoeia.
We hope you now know whether to use Imitative or Onomatopoetic in your sentence.