Denshi Jisho — Online Japanese dictionary

明瞭 めいりょう clarity; clearness
Common word, Noun, Na-adjective 
瞭然 りょうぜん obvious
Noun, Taru-adjective, Adverb taking the 'to' particle 
不明瞭 ふめいりょう dimness; obscurity; indistinctness; unclear; unintelligible
Na-adjective, Noun 
明瞭度 めいりょうど articulation
Noun 
一目瞭然 いちもくりょうぜん apparent; obvious; very clear
Na-adjective, Noun, No-adjective 
簡潔明瞭 かんけつめいりょう clear and concise
Noun, Na-adjective 
簡単明瞭 かんたんめいりょう simple and clear
Noun, Na-adjective 

You can also

Look up kanji details for *瞭*.

Try a Yahoo Jisho search for *瞭* .
Try a Goo Jisho search for *瞭* .
Try a Google search for *瞭* .