ぬくぬく

ぬくぬく
adverb
snugly warm, comfortably
1. snugly warm, cozily
Comfortably warm, often in a sheltered environment.
布団(ふとん)(なか)でぬくぬくしている。
I'm snuggled up warm in the futon.
暖房(だんぼう)()いた部屋(へや)でぬくぬくする。
To be cozy and warm in a heated room.
2. living in comfort without hardship
Living an easy life without experiencing difficulties (often with slight negative nuance).
ぬくぬくと(そだ)てられた。
Raised in comfort without hardship.
Slightly negative nuance

ぬくぬく is an onomatopoeia describing cozy warmth or comfortable living.

SENSE 1 - PHYSICAL WARMTH:

  • 布団(ふとん)(なか)でぬくぬく: snuggled in the futon
  • ぬくぬくと(あたた)まる: to warm up cozily
  • ぬくぬくした部屋(へや): a cozy warm room

SENSE 2 - SHELTERED LIFE (often negative):

  • ぬくぬくと(そだ)つ: to grow up sheltered/pampered
  • ぬくぬくと()らす: to live in comfort (without hardship)

VERBAL USE:
ぬくぬくする: to be cozy, to snuggle up

CONTRAST:

  • ぽかぽか: warm from external heat (sun, heater)
  • ほかほか: steaming hot (food)
  • あったかい/(あたた)かい: warm (general)

Note: Sense 2 can carry a critical nuance, implying someone is too comfortable and hasn't experienced real difficulties.