in·tel·li·gi·ble 
(ĭn-tĕlĭ-jə-bəl)
(ĭn-tĕlĭ-jə-bəl)adj.
1. Capable of being understood: an intelligible set of directions.
2. Capable of being apprehended by the intellect alone.
[Middle English, from Old French, from Latin intellegibilis, intelligibilis, from intellegere, to perceive; see INTELLIGENT.]
in·tel′li·gi·bili·ty, in·telli·gi·ble·ness n.
in·telli·gi·bly adv.