Synonyms of the word 
RUNTINESS → LITTLENESS - PUNINESS - SMALLNESS - STUNTEDNESS
runtiness
- n. The quality of being runty.
littleness
- n. The property of being little, smallness.
- n. Smallness of spirit; pettiness.
puniness
- n. The quality of being puny.
smallness
- n. (uncountable) The state or quality of being small.
- n. (countable) The result or product of being small.
stuntedness
- n. The quality of being stunted or dwarfed.
If you are interested in words, visit the following sites :
- wiktionary.org/runtiness For complete definition of a word
- 1word.ws/runtiness to play with words, suffixs, prefixs, etc.