Khuddakavatthuvibhaṅga › มัวเมาในบริวาร

Abhidhammapiṭaka · Vibhaṅga · Vol. 35 · Section 877

[877] Therein, what is sluggishness of mind (cetaso līnattaṃ)? That which is indisposition of the mind (citta), unwieldiness, drooping, sagging, sluggishness, being sluggish, the state of being sluggish, dullness (thīna), being dull, the state of the mind's being dull — this is called sluggishness of mind.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.