adjective likelier -·lier, likeliest -·li·est

1. apparently true to the facts; credible; probable a likely cause
2. seeming as if it would happen or might happen; reasonably to be expected; apparently destined it is likely to rain
3. such as will probably be satisfactory or rewarding; suitable a likely choice for the job
4. having good prospects; promising a likely lad
5. Dialectal attractive; agreeable

Etymology: ME likly, prob. aphetic < OE geliclic (or < ? ON likligr): see like & -ly

adverb likelier -·lier, likeliest -·li·est