VERBS appear, be, feel, look, seem, sound | become, get starting to get frustrated | leave sb, make sb This failure leaves the child depressed and frustrated.
ADV. deeply, extremely, really, very | completely, totally | increasingly | a bit, a little, quite, rather, slightly She sounded rather frustrated to me. | sexually
PREP. at Both sides in the dispute appeared very frustrated at the lack of progress. | by We were frustrated by the long delays. | with Sometimes he gets really frustrated with his violin playing.