Noun, Noun which may take the genitive case particle 'no', Na-adjective (keiyodoshi)
truth; reality
Usually written using kana aloneKansai dialectsee 本当
「けんじが病院に?」「そうや、ほんまけったくそ悪い......」"Kenji's in the hospital?" "That's a real pisser..."
Also written 本間【ほんま】