affiliation, n. [adoption], [connection], [association].
affirm, v. assert (positively), aver, asseverate, [state].
affirmation, n. [assertion], averment, asseveration.
affirmative, a. confirmative, ratifying, approving.
affix, v. subjoin, annex, append.
afflict, v. [persecute], [distress], [scourge], [trouble], [harass].
affliction, n. tribulation, [adversity], [trouble], buffeting, bereavement, [hardship], visitation, [scourge], [distress], [misfortune].
affront, n. indignity, [insult], [outrage], contumely, [offense].
aflutter, a. agitated, [perturbed], discomposed, [excited]. Antonyms: [calm], composed.
aforethought, a. designed, prepense, premeditated, [deliberate], [intentional].