ironic
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adjective
using or characterized by irony:
〈状況･展開などが〉皮肉な
e.g. his mouth curved into an ironic smile.
happening in the opposite way to what is expected, and typically causing wry amusement because of this:
反語の, 反語的な; 〈態度･ふるまいなどが〉皮肉のこもった; 〈人が〉皮肉好きな
e.g. with clause : it was ironic that now that everybody had plenty of money for food, they couldn't obtain it because everything was rationed.
DERIVATIVES
ironical adjective
ORIGIN
mid 17th century: from French ironique or late Latin ironicus, from Greek eirōnikos ‘dissembling, feigning ignorance’, from eirōneia (see irony1).