Both Uses

distinct
in
The Hunt for Red October
(Auto-generated)

These sonars were far less powerful than ship-carried sonars and had distinctive characteristics.†
Chpt 13. *

distinctive = clear, easily noticed, and/or identifiable as different or separate -- sometimes to indicate a difference that is excellent
The four officers, nine michmanyy, and the remaining enlisted crew were split into distinct groups as they boarded.†
Chpt 16.

distinct = clear, easily noticed, and/or identifiable as different or separate

Definitions:

(1) (distinct)
clear, easily noticed, and/or identifiable as different or separate
(2) (meaning too rare to warrant focus)