Synonyms for "heavy" would be : * hefty * massive * ponderous * weighty * cumbersome * lumpish * hulking * husky * stout

There are no words in the English language that rhyme with "punishment". You could use words that rhyme with only the last syllable note of your focus word, in this case "ent".

banishment
adjustment
judgement
adjacent

Who in this world hasn't said they were "feeling sluggish". Sluggish it self is such a common term that just about everyone knows what it means. Synonyms for sluggish include words like sleepyheaded, lumpish, slumberous, laid-back, and inactive. You may also hear the replaced with other sch as pokey, stagnant, inert or even comatose.

I can think of no reason EVER to use quicklime in a gardening or agricultural context. One might use it to make a lime mortar for construction or rendering, or a lumpish or lime putty - but as an addition to soil? NO. IF you do use it wear protective gear - gloves and goggles at a minimum. I rarely wear goggles for any DIY, but I do when using 'quicklime'.

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern LUM--S-. That is, seven letter words with 1st letter L and 2nd letter U and 3rd letter M and 6th letter S. In alphabetical order, they are:

lumpish