Lumpish
/ˈlʌmpɪʃ/
Definition 1 of 2
Pro Tip 1/3After Eating
Use 'lumpish' to describe the sluggish feeling following a large meal. 
I can't join the game; I'm feeling rather lumpish from lunch.
Pro Tip 2/3Lacking Energy
'Lumpish' implies low energy or enthusiasm, especially when you're expected to be active. 
Despite the cheering crowd, the team's performance was lumpish.
Pro Tip 3/3Dull Mood
Describes a person's mood when they're not as lively or animated as usual. 
He didn't crack a single joke today, just sat there looking lumpish.
Compare with
ApatheticClumsyHeavyInactiveLethargicSluggishStolidUnwieldy
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