厳重げんじゅう
genjū

Noun
na-Adjective

1. strict; severe; stringent; rigorous; rigid; firm; strong; secure

トップエンジニアが、そのくるま一連いちれん厳重げんじゅう検査けんさくわえた。
toppuenjiniaga sono kurumani ichirenno genjūna kensao kuwaeta.
The top engineer put the car through a series of rigorous tests.
Other forms: