According to the dictionary, being anxious is being greatly worried;
Phillipians 4:6,7 says."6 Do not be anxious over anything, but in everything by prayer and supplication along with thanksgiving let your petitions be made known to God; 7 and the peace of God that excels all thought will guard your hearts and your mental powers by means of Christ Jesus.Matthew 6:25-34 On this account I say to you: Stop being anxious about your souls as to what you will eat or what you will drink, or about your bodies as to what you will wear. Does not the soul mean more than food and the body than clothing? 26 Observe intently the birds of heaven, because they do not sow seed or reap or gather into storehouses; still your heavenly Father feeds them. Are you not worth more than they are? 27 Who of you by being anxious can add one cubit to his life span? 28 Also, on the matter of clothing, why are you anxious? Take a lesson from the lilies of the field, how they are growing; they do not toil, nor do they spin; 29 but I say to YOU that not even Sol?o?mon in all his glory was arrayed as one of these. 30 If, now, God thus clothes the vegetation of the field, which is here today and tomorrow is thrown into the oven, will he not much rather clothe you, you with little faith? 31 So never be anxious and say, ‘What are we to eat?’ or, ‘What are we to drink?’ or, ‘What are we to put on?’ 32 For all these are the things the nations are eagerly pursuing. For your heavenly Father knows you need all these things.33 “Keep on, then, seeking first the kingdom and his righteousness, and all these [other] things will be added to you. 34 So, never be anxious about the next day, for the next day will have its own anxieties. Sufficient for each day is its own badness.