

田中さんはとても紳士な人ですね。
あんなに紳士な男性は、なかなかいませんよ。
彼、紳士なふりをしているだけじゃない?
"しんしな(紳士な)" is in the lesson "Adjectives 7" (Level 45), along with 11 other useful words. LinDuo has 180 topic lessons like this one, 2,379 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.