Synonym: casual. Similar words: effortlessly, artless, heartless, effort, chortle, tactlessness, limitlessness, witless. Meaning: ['efərtlɪs /'efət-] 
adj. 1. requiring or apparently requiring no effort 2. not showing effort or strain.
adj. 1. requiring or apparently requiring no effort 2. not showing effort or strain. 
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1 His movements were so graceful they seemed effortless.
2 In a single effortless motion, he scooped Frannie into his arms.
3 Alexei rose to his feet with a single effortless movement.
4 The whole ethos of the hotel is effortless service.
5 She plays with seemingly effortless skill.
6 Burton made the jump look effortless.
7 When you watch her dance it looks so effortless.
8 He was an actor of effortless charm.
9 He played the piece with effortless artistry.
10 He made playing the guitar look effortless.
11 She liked him above all for his effortless charm.
12 He is a skilful and effortless mechanic.
13 Michael Banks was giving a performance of effortless authority.
14 Because she made it look effortless,(www.Sentencedict.com) improvised-newly minted.
15 The crowd was hypnotized by Parker's effortless sax playing.
16 The dialogue was character driven and effortless.
17 She performed her dive with effortless grace.
18 The way she dances makes it seem so effortless.
19 Other musicians were amazed by Parker's effortless improvisational skill.
20 She dances with effortless grace.
21 He places a tiny wire runner with effortless case, in comparison with my desperate finger-wrestling, rope-biting contortions.
22 In the drawing used here the effortless decision has been chosen in preference to the one that required a little more effort.
23 Like Chrissie Evert executing an effortless backhand crosscourt volley at Wimbledon, Perdita shot forward and whacked the ball home.
24 Garner's effortless performance makes the show a pleasure to watch.
25 It was all so quick and effortless that she wondered whether she'd been mistaken about his intentions.
26 He is perplexed by the idea of effortless intercontinental telephoning and overnight shipment of packages.
27 Driving the Jaguar gave him a feeling of total control, effortless superiority.
28 For registry staff to monitor effectively the accuracy and completeness of this operation requires detailed record-keeping and effortless access to data.
29 And John impressed his parents with what seemed like effortless success at just about anything he attempted.
30 Mark drew quickly and with confidence, in a way that looked completely effortless.
More similar words: effortlessly, artless, heartless, effort, chortle, tactlessness, limitlessness, witless, restless, rootless, tactless, listless, spotless, dauntless, shiftless, pointless, countless, limitless, restlessly, talentless, listlessly, tactlessly, relentless, thoughtless, contactless, worthless, myrtle, turtle, startle, startled.