Adjective
not specialized or modified for a particular purpose or function
Source: WordNetDescription Size comparison of male S. punctatus and human The tuatara is considered the most unspecialised living amniote ; the brain and mode of locomotion resemble those of amphibians and the heart is more primitive than that of any other reptile. Source: Internet
The individual body sections are largely unspecialised ; even the head develops only a little differently from the abdominal segments. Source: Internet
Within the connective tissue lie three continuous layers of unspecialised smooth muscular tissue. Source: Internet