Question

which of the following words has a suffix that means \state of or condition\?
mistreat
biweekly
tightness
deform

Explanation:

Suffixes are word - ending parts that change a word's meaning. "Tightness" has the suffix "-ness" which means "state of or condition". "Mistreat" has the prefix "mis - " (wrongly). "Biweekly" has the prefix "bi - " (two) and the suffix "-ly" (relating to). "Deform" has the prefix "de - " (opposite of).

Answer:

Tightness