Synonyms of the word 
IRREPRESSIBLE → UNCONTROLLABLE - UNCONTROLLED
irrepressible
- adj. Not containable or controllable.
- adj. (of a person) Especially high-spirited, outspoken, or insistent.
uncontrollable
- adj. Not able to be controlled, contained or governed.
uncontrolled
- adj. not controlled.
If you are interested in words, visit the following sites :
- wiktionary.org/irrepressible For complete definition of a word
- 1word.ws/irrepressible to play with words, suffixs, prefixs, etc.