| A | B |
|---|
| immobility (I moh BIL i tee) | the state of being without movement or motion |
| imperfect (im PUR fikt) | flawed; defective; inferior |
| improbable (im PRAHB uh buhl | unlikely; doubtful |
| improper (im PRAHP ur) | not correct; unsuitable |
| inability (IN uh BIL i tee) | . lack of aptitude, knowledge, or skill |
| inadequate (in AD i kwit) | not sufficient; unsatisfactory |
| inarticulate (IN ahr TIK yuh lit) | having to do with unclear or mumbled speech |
| incapacitate (IN kuh PAS i TAYT | not able to be understood or believed |
| incongruity (IN kahn GROO i tee | a lack of harmony; incompatibility |
| indefinite (in DEF uh nit | not certain; not decided |
| indisputable (IN di SPYOO tuh buhl) | unquestionable; beyond doubt |
| inefficient (IN i FISH uhnt) | having to do with wasting time, space, or materials |
| inept (in EPT) | not qualified; unfit |
| informal (in FOR muhl) | casual; lacking ceremony |
| inscrutable (in SKROO tuh buhl) | mysterious; difficult to comprehend |
| invulnerable (in VUHL nur uh buhl) | not capable of being damaged, wounded, or hurt |
| irreconcilable (i REK uhn SY luh buhl) | not able to be resolved or restored to friendship or harmony |
| irreparable (i REP ur uh buhl) | unable to be corrected or fixed |
| irreversible (IR i VUR suh buhl | not able to be turned backward or changed to an opposite position or condition |
| incomprehensible (IN kahm pri HEN suh buhl | not able to be understood or believed |
