Wiktionary
unaspirated
a. (context phonology English) Not aspirated
Usage examples of "unaspirated".
For this reason, people who are used to hearing the unvoiced sounds pronounced as aspirated variants may (wrongly) perceive unaspirated unvoiced plosives as their voiced counterparts.
However, following at least some consonants, the primitive aspirates kh, ph, th lost their aspiration (the h element) and became unaspirated k, p, t instead.