Donald Trump
Donald TrumpReuters

Republican presidential front-runner Donald Trump on Tuesday referred to Democratic candidate Hillary Clinton as "in a certain way, evil" in a word association game posed by MSNBC's host Mika Brzezinski.

According to a report in CNN, Brzezinski asked the Trump to describe his 2016 rivals in one word. When it came to the former secretary of state, Trump said, "In a certain way, evil."

The comments came as New Hampshire voters were headed to the polls to cast their votes in the primary. Trump and Democratic candidate Bernie Sanders led polling ahead of the contest.

Trump -- who on Monday night repeated a vulgar word used by a woman in the audience to describe Ted Cruz -- was far more charitable when asked to describe Bill Clinton.

"Intelligent," he said, according to CNN.

In the past, Trump has said Bill Clinton's past affairs are fair game for criticism of his wife, Hillary.

Trump also called Texas Cruz "nasty" and Florida Senator Marco Rubio "confused" during his MSNBC appearance.

When asked to describe himself, Trump initially replied, "brilliant," before switching his answer.

"I would say, 'a nice person.' A lot nicer than people think," he claimed.

Trump is not known for his use of gentle, kind language. Not too long ago he caused controversy when he  said during a campaign rally that in the 2008 Democratic primaries, Clinton "got schlonged" by Barack Obama, using a Yiddish term for a man's genitals. 

Trump later denied the use of the word was vulgar, claiming it only means Clinton was “beaten badly” in those primaries.