いつにない (translations)→ cheerful ease unusually
いつになく (translations)→ ever rare rather somewhat suddenly uncharacteristic uncharacteristically unwonted urgency
おかしな (translations)→ bizarre crazy funny homely odd silly squirrelly ulterior wrong
ただならぬ (translations)→ formidably great interesting proper uncommonly unnatural urgent
ときならぬ (translations)→ early unexpected
めずらしく (translations)→ exceptional seldom strangely
めったにない (translations)→ golden slow
異様な (translations)→ deeply disturbed ghostly grisly out-of-kilter peculiar remarkable screwed-up strange twisted unspeakable untoward weird wonderfully
異例の (translations)→ exceptionally untypical
奇怪な (translations)→ eccentric extraordinary ghastly uncanny
心もとない (translations)→ disconsolate uncertain unsettling unsound vaguely
前代未聞の (translations)→ uncommon unheard-of unprecedented
不思議な (translations)→ curious fantastic funnily incredible little oddly puzzling subtle
変わった (translations)→ freak idiosyncratic particular startling
妙な (translations)→ certain curiously dreadful false foolishly perverse queer screwy singular some suspicious