Odd
Part of speech: adjective
Definition: strange, unusual. Not divisible by two. But for the odd exception. left over, remaining when the rest have been grouped casual, irregular. about, approximately.
Example sentence: Your problem is how you are going to spend this one odd and precious life you have been issued. Whether you're going to spend it trying to look good and creating the illusion that you have power over people and circumstances, or whether you are going to taste it, enjoy it and find out the truth about who you are.
Unusual
Part of speech: adjective
Definition: Unlike what is expected; differing in some way from the norm.
Example sentence: Because I am a woman, I must make unusual efforts to succeed. If I fail, no one will say, 'She doesn't have what it takes'; They will say, 'Women don't have what it takes.'