straight
Achievement is an example.
Undersized would be one.
No such word as "errational". If you meant "irrational" then a synonym would be 'unhinged', 'mad', 'loopy', 'impulsive', 'unreasonable', 'unsound'.
enlarge
plentiful
The closest synonym to the word visible would be 'in view'.
The closest synonym for equipped would be armed.
the correct synonym for the word maintaining is Preserving.
The closest synonym for the word "contentions" would be "disputes" or "arguments" as it refers to conflicts or disagreements between people.
I think "recommended" would be the closest.
discusted
challenging
stop
Foresee
Significant.
guaranteed
Particulars