List: word usually written using kana alone

usually written using kana alone  noun  noun (generic) 

• thrift (Armeria maritima), sea thrift, sea pink

usually written using kana alone  expression 

• intolerable, unbearable, unendurable
• irresistible, tremendous, out of this world
• cannot help (doing), cannot but do, anxious to do

usually written using kana alone  expression 

• not going (well), not proceeding (as one wishes)
• bad, not good
• hopeless, beyond hope
• must not (do, be), should not, ought not to

slang  usually written using kana alone  baseball  interjection 

• I'm ready!, bring it on!

usually written using kana alone  noun  noun (generic) 

• acorn woodpecker (Melanerpes formicivorus)

usually written using kana alone  noun  noun (generic) 

• yellow fever mosquito (Aedes aegypti)

usually written using kana alone  noun  noun (generic) 

• Asian tiger mosquito (Aedes albopictus)

colloquial  usually written using kana alone  noun  noun (generic) 

• unreasonable request, asking for something unreasonable

rarely used kanji form  usually written using kana alone  expression  い adjective  adjective (generic) 

• unprecedented, never seen before

usually written using kana alone  noun  noun (generic) 

• Asarum caulescens (species of wild ginger)