Intermediate (B1)
IPA: /sɪˈmɛstrɪəl/
KK: /sɪˈmɛstrɪəl/
Definition
Happening twice a year or every six months.
Example
The semestrial exams are scheduled for June and December.
Conversation

Have you finished your semestrial project for school yet?

Not yet, but I’m making good progress on it.

That's good to hear! The semestrial deadlines always sneak up on me.

I know, right? It's like they come out of nowhere every six months!
Synonyms & Antonyms
Synonyms
biannual
semiannual
halfyearly
Root Explanation
Semestrial → It is formed from "semestris" (from Latin, meaning half a year) and the suffix "-al" (meaning pertaining to). The word "semestrial" refers to something that pertains to a half-year period.
Memory Tip
Think of 'half a year' ('semestris') to remember that 'semestrial' relates to a period of six months.
Visually Confused Words
sedimetrical
decimestrial
sequestral
semiterrestrial
semiaerial
pedestrial
equestrial
cemeterial