もったり

Meanings

adverb, adverb taking the 'to' particle, noun or participle which takes 'suru'

thick and creamy; stiff peaks; foamy

onomatopoeic or mimetic word

Describes a thick, viscous consistency that leaves a trail or forms soft peaks, especially for whipped eggs, cream, or soap suds.

は

水みず

を

加くわ

える

と

もったり

と

し

た

泡あわ

が

立た

つ

。

This soap produces a thick, creamy lather when water is added.

adverb, adverb taking the 'to' particle, noun or participle which takes 'suru'

sluggish; heavy; slow-moving

onomatopoeic or mimetic word

Describes movement or action that is slow, heavy, and lacking energy, often with a sense of viscosity or resistance.

暑あつさで体からだがもったりして動うごけない。
My body feels heavy and sluggish in the heat, and I can't move.
そのソースはもったりと鍋なべから流ながれ出でた。
The sauce oozed sluggishly out of the pot.

とろり
とろり describes a smooth, syrupy thickness that flows slowly, while もったり emphasizes a heavier, stiffer consistency that holds peaks or moves sluggishly.
どろり
どろり suggests a thick, muddy, or sludgy texture, often with a negative connotation, whereas もったり can be neutral or positive for food textures.

Mimetic word; the exact origin is uncertain, but the sound もったり evokes a sense of heaviness and viscosity.