Spellings

 Accumulate is the correct spelling.

Guaranteed is the correct spelling. It requires the 'u' after the 'G' and the -teed suffix.

Inexplicable is the correct spelling. It follows the standard -able suffix pattern.

Unanimous is the correct spelling. It does not contain double 'n's in the middle.

Sinecure is the correct spelling. It refers to a position requiring little or no work.

Negligee is the correct spelling. It is a loanword from French.

Honorary is the correct spelling. It is derived from honor, which in American English lacks the 'u'.

Immaculate is the correct spelling. It features a double 'm' and a single 'l'.

 Fascism is the correct spelling.

The correct spelling is Hypochondriac, which refers to a person who is abnormally anxious about their health.

The correct spelling is Unceremonious, meaning done without the usual formalities.

The correct spelling is Compunctions (or more commonly, the noun form Compunction), relating to feelings of guilt or moral scruple.

The correct spelling is Misogynist, which refers to a person who dislikes or is prejudiced against women.

The correct spelling is Altruist, which refers to a person who is unselfishly concerned for the welfare of others.

The correct spelling is Ambivert, a person whose personality has a balance of extrovert and introvert features.