Denshi Jisho — Online Japanese dictionary

かんてつ accomplishment; realization; realisation; penetration
Common word, Noun, Suru verb 
れいてつ cool-headedness
Common word, Na-adjective, Noun 
いってつ obstinate; stubborn; inflexible
Na-adjective, Noun, No-adjective 
かんてつ all nighter; sleepless night
Noun, Colloquialism, Abbreviation 
とうてつ penetration; absolutely clear; not dirty; clearness
Noun, Suru verb 
頑固一 がんこいってつ stubborn; obstinate; sticking to one's views or decisions
Noun, Na-adjective 
首尾貫 しゅびかんてつ (logical) consistency; coherence; unchanging from beginning to end
Noun, Suru verb 
初志貫 しょしかんてつ carrying out one's original intention
Noun 
武骨一 ぶこついってつ rustic; boorish; uncouth; adamantly sticking to being boorish
Noun, Na-adjective 
無骨一 ぶこついってつ rustic; boorish; uncouth; adamantly sticking to being boorish
Noun, Na-adjective 
老いの一 おいのいってつ obstinacy of old age
Noun 
忠義一 ちゅうぎいってつ staunch (steadfast, single-hearted) in one's devotion to his master (lord)
Noun, Na-adjective 
正直一 しょうじきいってつ stubbornly honest
Noun, Na-adjective 

You can also

Look up kanji details for *徹.

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