This is a cumbersome, awkward expression that should be avoided. Occasionally, frequently, at intervals, are among the expressions that may be used in its place.
Exceptionable, Exceptional
“He enjoyed exceptionable opportunities for acquiring the Greek language.” Say exceptional opportunities.
Female, Woman
The word female is often employed when woman would be better. Female applies to all of the feminine gender, including the brute creation.
Poet, Poetess
The tendency to increase the number of nouns with the feminine ending ess should be checked. Avoid poetess, authoress, doctress, and other newly-invented words of this kind.
Fewer, Less
Fewer refers to number, less to quantity. “He had less friends than I, and yet he was elected.” Say “He had fewer friends.” “There were no less than fifty cows in the field.” Use fewer.
Right smart