import re


def remove_non_alphanumeric(word_list):
    """
    Remove non-alphanumeric tokens (e.g. :, @) in the given word list

    parameters
    -----------
    :param word_list: list of str
    :return: list of str
    """
    filtered_list = [word for word in word_list if not re.match('^\W+$', word)]
    return filtered_list