| Term | Definition |
| obdurate | stubborn (obstinate) |
| ineffable | not being able to explain |
| insidious | stealthy; negative result |
| vicarious | substituting |
| laconic | marked by the use of few words; quiet (succinct) |
| inexorable | not giving up |
| precocious | premature |
| prolix | lots of words |
| estrangement | separation |
| undermine | to weaken |
| daunting | feel fear |
| maverick | loner |
| profusion | abundance |
| augmenting | increasing |
| conjecture | based on guess |
| inundated | flooded |
| stickler | someone who sticks to the rule |
| inchoate | premature (precociousness) |
| facetious | funny |
| truculent | tending to fight |
| gregarious | sociable |
| aplomb | optimism |
| ethereal | heavenly |
| obfuscate | to make unclear |
| indolent | lazy |
| sardonic | sarcastic |
| poignant | emotional |
| fecund | fertile |
| castigate | to criticize |
| malice | evil |
| levity | lack of seriousness |
| martinet | strict person |
| divulging | to give out information |
| mirthful | happy |
| truncating | cutting short |
| belied | lie |
| dejected | sad |
| spurious | fake |
| elated | happy; joyful |
| relinquished | released |