IPA: /nɒnˈmoʊtaɪl/
KK: /nɑnˈmoʊtaɪl/
Not able to move or not capable of movement.
Some bacteria are nonmotile and do not move on their own.
Nonmotile → It is formed from "non-" (meaning not) and "motile" (from Latin "motus", meaning moved or capable of movement). The word "nonmotile" describes something that is not capable of movement.
Think of 'not' ('non-') being combined with 'moved' ('motus') to remember that 'nonmotile' means something that cannot move.