You searched for: “unable”
enable, unable
enable (e NAY buhl) (verb)
To make easy, possible, or practical: This device will enable the students, or furnish them with the means, to calculate the right answer very quickly.
unable (un AY buhl) (adjective)
Incapable or helpless: Despite her best intentions, she was unable to answer the questions in time.

The teacher said that she was unable to give the student a higher mark on his test. She didn't want to enable him to participate in the team without having earned the appropriate test scores.

This entry is located in the following unit: Confusing Words Clarified: Group E; Homonyms, Homophones, Homographs, Synonyms, Polysemes, etc. + (page 2)
unable (adjective); unabler, more unable; unablest, most unable
1. Lacking the necessary knowledge or skill to accomplish something: Susi was unable to carry the big and heavy box because she was not strong enough.
2. Prone to being feeble or helpless; incapacitated: Jane suddenly felt so sick that she was unable to concentrate on Mrs. Smart's lesson in school.

Old Mrs. MacIntosh had to be in a wheelchair because she was unable to walk anymore.

This entry is located in the following unit: -able (page 37)
mut-
(Greek > Latin: unable to speak, inarticulate, dumb; uttering no sound, silent, silence, still, quiet)
opaqu-
(Latin: not transparent nor translucent, not clear, unable to shine through; shaded, shady; dark; no luster; not clearly understood or expressed)