Akademik

straight arrow
noun
a frank and honest person
Syn: ↑square shooter, ↑straight shooter
Ant: ↑liar (for: ↑square shooter)
Hypernyms: ↑good person

* * *

noun, pl ⋯ -rows [count]
US informal : a person who is very honest and morally proper

He doesn't drink or smoke. He's a real straight arrow.

* * *

ˌstraight ˈarrow f1 [straight arrow] noun (NAmE, informal)
a person who is very honest or who never does anything exciting or different

Useful english dictionary. 2012.