Adjective: ametabolic ,ey,me-tu'bó-lik
- (zoology) undergoing slight or no metamorphosis
"Ametabolic insects maintain the same form throughout their lives";
- ametabolous
- Undergoing no (or only slight) metamorphosis
"Ametabolic insects, like silverfish, do not undergo dramatic changes in form"
See also: nonmetamorphic
Antonym: metabolic