ふにゃふにゃ

noun, noun or participle which takes 'suru'

limpness; being limp

Describes a state of lacking firmness or stiffness; often used for objects that should be rigid but are not.

• この麺めんは茹ゆですぎてふにゃふにゃだ。

  These noodles are overcooked and limp.

na-adjective, noun which may take the genitive case particle 'no'

soft; limp; flabby

Describes something that is soft and lacking firmness, often with a negative connotation of being too soft or weak.

• ふにゃふにゃの枕まくらは首くびが痛いたくなる。

  A soft, limp pillow makes my neck hurt.

• 運うん動どう不ぶ足そくでお腹なかがふにゃふにゃになってきた。

  My belly has gotten flabby from lack of exercise.

na-adjective, noun which may take the genitive case particle 'no'

mumbling; talking with food in one's mouth

Sometimes used instead of むにゃむにゃ to describe indistinct speech, especially when the mouth is full or the speaker is half-asleep.

• 口くちに物ものを入いれたままふにゃふにゃ言いわないで。

  Don't mumble with food in your mouth.