This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Drawn in or inward: an indrawn gasp.

adj. Introverted; withdrawn: "Her psychiatrist had pronounced her too tense and indrawn to endure a strange teacher” ( Louis Auchincloss).

adj. Having been drawn in.

adj. Quiet, introspective.

adj. Drawn in.

Drawn in; introverted; manifesting or indicative of mental abstraction or introspection: as, an indrawn look.

adj. tending to reserve or introspection

"The eyes, slow of movement and heavy-lidded, were almost expressionless under the shaggy, indrawn brows."

reserved   

shuddery    drawn-in    bated    half-stifled    stertorous    slitlike    fear-struck    long-held    deadspeak    dvp